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Mathematics Questions and Answers February 19, 2021

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All work must be shown to get credit for your answers- Round to two decimal places if needed. 1) (1 pointeach) Solve the equations algebraically. Show all steps! a) Se\" = 285 Solution 2: = ......... b) 1th5 2x + 1th5 3 = 2 Solution 2: = ......... c) 4 + 71110:) = 60 (exact answer, no decimals) Solution 3: = ......... 2) {1 point each) Consider
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6.La Downtown Parking Authority, de Tampa, Florida, report los siguientes datos de una muestra de 250 clientes relacionados con el nmero de horas que se estacionan los automviles y las cantidades que pagan. Numero de horas - Frecuencia - Pago A: 1 - 20 -$3 B: 2 - 38 -$6 C: 3 - 53 -$9 D: 4 - 45 -$12 E: 5 - 40 - $14 F: 6 - 13 - $16 G: 7 - 5 - $8 H:

Problem 4 An experiment performed on flies examined the effect of two food sources on the lengths of their eye stalks. The data is in the file "fly_eye_stalk.csv". One group was fed corn, and an independent group was fed cotton. Estimate the size of the effect of interest here. Perform and report on the results of an appropriate statistical test
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P QUESTION 14 A CBS News/New York Times poll found that 329 out of 763 randomly selected adults said they would travel to outer space in their lifetime, given the chance. Estimate the true proportion of adults who would like to travel to outer space with 92% confidence. Do not round the values from the table. Round p-hat and q-hat to the
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Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of= 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress

i need help with part 3. For part 3 to be answered the information has to be gotten from 1 and 2. I gave the answers to part 1. ArnecanMade Cars 1c Below is the relative frequency table for American made cars. Each relative frequent}.r is found by taking the actual frequency and. dividing it by 513. AmericanMade Cars MPG Relative Frequency 9 - 12
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Fran is about to sit a multiple choice test with 10 questions. She has studied quite hard, and believes that the probability that she will get any particular question correct is 0.9. Fran also believes that the questions are independent, and her performance on each question is independent of her performance on any other question. Fran's parents

Confidence Intervals Assignment 4.1 Suppose you are trying to estimate the average miles per gallon for a new brand of car. You take a random sample of 40 cars, and, for this sample, the average miles per gallon is 32 and the standard deviation is 2.2. Answer the following questions in a Word document: 1. What is the population mean you are trying
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I'm struggling with the following questions. Please help. (1 point) Find the Taylor series generated by f(m) = 4 at m = 3. 00 Taylor series is E 555 =0 (1 point) Find the Taylor series generated by f(a:) = 5'c at a: = 2. 00 Taylor series is E 5E5 n=0 0O (1 point) Find the Taylor series generated by m) : 'm + 25 at a: : 0. Write your answer in the
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6. Two separate samples receive different treatments. After treatment, the first sample has n = 5 with SS = 60, and the second has n = 9 with SS = 84. a. Compute the pooled variance for the two samples. b. Calculate the estimated standard error for the sample mean difference. c. If the sample mean difference is 7 points, is this enough to reject
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Using the Sun Coast data set, perform a correlation analysis, simple regression analysis, and multiple regression analysis, and interpret the results. Please follow the Unit V Scholarly Activity template to complete your assignment. You will utilize Microsoft Excel ToolPak for this assignment. Example: Correlation Analysis Restate the hypotheses.

Need help with screenshots 2 and 4. All info needed can be found below. Let me know if you need anything else. Thanks. 2 e blank to complete the statement. If we do not reject the null hypothesis when the statement in the alternative hypothesis is true, we have made a Type error. If we do not reject the null hypothesis when the statement in the
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statistics 15 Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, u, is less than 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find
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3. You roll two fair s- sided dice . Each one of the 25 possible outcomes is assumed to be equally likely. a ) Find the probability that two dice give agood different values b). Find the probability that sum is less than 9 ( ) Find probability that at least one die is a 1 d ) Given that the two dice land on same numbers, find the conditional
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Please show work Question 13 A survey asks college students to disclose how many accidents they have been in. In the table below, x represents the number of accidents a student has been in. Frequency x 31 24 W N - 19 12 A 6 2 You should use Google Sheets for this problem. a. What is the probability that a randomly selected student has been
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inis question: 1 point(s) possible A teacher claims that her students' test scores are getting more consistent and now have a lower variation than 2.31, the variation in previous terms. She conducts a hypothesis test. She calculates her test statistic to be x2 = 15.585 She looks up the critical value for this test and finds it to be x = 10.405.
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please help me with these questions The height 40 different vines grew in five years (in inches) are listed in ascending order below: 108, 114, 115, 115, 124, 136, 140, 140, 143, 143, 146, 149, 152, 159, 160, 163, 164, 165, 166, 169, 174, 178, 179, 179, 179, 180, 180, 186, 190, 194, 196, 198, 199, 199, 204, 209, 211, 219, 222, 238 Based on this
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The data were collected from a statistics class. The column head gives thevariable, and each of the other rows represents a student in the class. Explain why the variableMale, iscategorical, even though its values are numbers.Often, it does not makesense, or is not even possible to add the values of a categorical variable. Does it make sense

1.) A researcher would like to determine whether a new tax on cigarettes has had any effect on people's behavior. During the year before the tax was imposed, stores located in rest areas on the state thruway reported selling an average of u = 410 packs per day with o = 60. The distribution of daily sales was approximately normal. For a sample of n
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A total of 3214 students responded to the survey. Most of the students who responded agreed (n=1665) or strongly agreed (n=324) with requiring a mask mandate on campus. Some student disagreed (n=888), but only 123 strongly disagreed. please calculate the probability for strongly agreeing with the mask mandate; strongly disagreeing with the mask

Suppose the population is all homeowners in Virginia who rake/bag their leaves. Among these Virginia homeowners suppose the mean number of bags of leaves produced is 21.5 with a standard deviation of 4.7. There are a few Virginia homeowners who produce many bags of leaves and hence the distribution is skewed heavily to the right. If a simple

Healthcare expenditure of households in Sarail have a mean of 1200 taka per month with a standard deviation of 360 taka per month. Let x be the mean monthly healthcare expenditure for a random sample of 64 households from this city. (a) Find the probability that the mean monthly healthcare expenditure of households is not 2 less than 1280 taka per
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Here is what I am having trouble at. Statistics and probability. A particular lake is known to be one of the best places to catch a certain type of fish. In this table, x = numberof fish caught in a6-hourperiod. The percentage data are the percentages of fishermen who caught x fishin a6-hourperiod while fishing from shore. x : 0 1 2 3 4 or more %:

What methods did we employ in this experiment? On each trial, two circles were shown. Your task was to adjust the size of one circle until it appeared to match the size of the other target circle. The size of the target circle varied across trials. The independent variable in this experiment is the size of the target circle. The dependent variable

Hi guys, can you please send the answer a little bit faster I would appreciate it. The mayor of a large city is considering changing his political viewpoint on increasing highway speeds. The mayor previously thought that approximately 48.5% of people wanted to increase highway speeds. In a recent poll of 1000 people, 503 people said they want to
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Answer...... You estimated a probit model with 2 independent variables X2 and X3. the estimated coefficients are b1=0.085 b2=0.62 and b3=-0.195. You are given the average of x2=1.5 and the average of x3=0.8. the effect of a unit increase in x2 on the probability that y=1 is Select one: O a. fall by 0.08 O b. an increase by 0.171 O c. an increase
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Given are five observations for two variables,X andY. The estimated regression equation isy = 0.2 + 2.6z NEED ANSWER FOR P-VALUE Given are five observations for two variables, z and y. 1 2 3 4 5 3 7 5 11 14 The estimated regression equation is y = 0.2 + 2.6x a. Compute the mean square error using the following equation (to 3 decimals). 4.133 b.
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A researcher wanted to know if there was a difference in performance among students who took their assessments in the morning, afternoon, or evening. The data output is below. Write up the results for the researcher and interpret whether or not the results are signicant, and if there are any additional tests needed. SUMMARY Groups Count Sum
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D Question 9 5 pts It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the
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I am studying for my upcoming test and need help with this question with work provided. Thank you :) Treatment Placebo H1 A study was done using a treatment group and a placebo group. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not
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You may need to use the appropriate appendix table or technology to answer this question. Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $42,000 and $59,800. Assume that a 95% condence interval estimate of the population mean annual starting salary is desired. (Round your
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Frovide the ilustration needed in each items to answer the all sub-questions which follow. 1. Draw a Venn diagram. Let _ be an event of natural numbers, let A be on event of natural numbers greater than or equal to 5 but less than 25 and let B be an event of natural numbers greater than orequal to 15 but less than 35. 1.2. Find P(A). 1:3. Find
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A dietician wanted to know whether marital status impacts eating habits. The dietician randomly selected four single participants, four married participants, and four divorced participants and asked them to fill out a survey about their eating habits. Higher scores on the survey indicate better eating habits. The results were as follows: Eating

Would appreciate the help! Thanks in advanced, answers are just fine. Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) LO USE SALT P(-0.42 S z S 2.28) =Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated
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1) Write the Null Hypothesis(Ho) for each inference analysis. Analyses 4 Table 1 Descriptives Eating Style 95% Confidence Interval for Std. Mean N Mear Deviation Std. Error Lower Bound Upper Bound Minimum Maximum Melayu 36 17.31 2.424 404 13.49 15.13 9 20 Cina 13 11.23 2.048 568 11.99 14.47 10 16 India 11 15.09 3.270 986 11.89 16.29 8 20 Total 60
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Please provide me with a run chart using this data. I am doing it but it does not look correct. Number Conveyor Cut Length (mm) Number Conveyor Speed (cm/sec) Cut Length (mm) Speed (cm/sec) 1.0 8.1 1046.0 26.0 8.0 1040.0 2.0 7.9 1030.0 27.0 5.5 1013.0 3.0 8.0 1039.0 28.0 6.9 1025.0 4.0 7.4 1027.0 29.0 7.0 1020.0 5.0 7.5 1028.0 30.0 7.5 1022.0 6.0

A researcher wants to compare the efficacy of three different techniques for memorizing information. They are repetition, imagery, and mnemonics. The researcher randomly assigns participants to one of the techniques. Each group is instructed in their assigned memory technique and given a document to memorize within a set time period. Later, a test

The data set consists of information on 4800 full-time full-year workers. The highest educational achievement for each worker was either a high school diploma or a bachelor's degree. The worker's ages ranged from 25 to 45 years. The data set also contained information on the region of the country where the person lived, marital status, and number
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Using the following information regarding actual sales for Paradise Pools, calculate the regression (trend) line. Sales for Paradise Pools ($000s) Month First Year Second Year January 84 84 February 80 82 March 88 98 April 100 120 May 150 160 June 200 210 July 240 250 August 220 215 September 180 195 October 160 165 November 120 130 December 92

needing some help with C WT imm .' - 'D DoHomework-HomeworkS X t t . t YouTube '3 Reading List Elementan/ Statistical Inference (1) Gracie Lancaster 8 | 10/03/212:54 PM H k' H k 5
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Kilgore's Deli is a small delicatessen located near a major university. Kilgore's does a large walk-in carry-out lunch business. The deli offers two luncheon chili specials, Wimpy and Dial 911. At the beginning of the day, Kilgore needs to decide how much of each special to make (he always sells out of whatever he makes). The profit on one serving

Two popular drugs used for the treatment of depression are Resithan and Exemor. A random sample of 509 depressed individuals is selected and treated with Resithan, and 178 find relief from their depression. A random sample of 502 depressed individuals is independently selected from the first sample and treated with Exemor, and 170 find relief from
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3. A research organization designed an experiment to test the effects of an educational TV show and its website on the learning of mathematical reasoning among upper elementary school students. The website had two type of activities: basic and advanced. The available students were randomly assigned to watch the show or not. Among these same
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Problem 1 Joint Distribution of Presidential Party Affiliation and Party Control of House of Representatives, 1860-1996 Democratic Control |Republican Control Total of House (Y = 0) of House (Y = 1) Democratic 0.412 0.030 President (X = 0) Republican 0.176 0.382 President (X = 1) Total (a) Interpret one of the joint probabilities and one of the
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can you prove?? \fSuppose that f : R > R is given by f(13) = (1:132 + bat + c, where a, E R, b E R, and c E R. Prove the following proposition: f is a convex function if and only if a 2 0
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A random sample of n, = 131 individuals results in x1 = 44 successes. An independent sample of n2 = 149 individuals results in X2 = 59 successes. Does this represent sufficient evidence to conclude that p,
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ANSWER PART D ONLY Data collected on the annual percent returns on gold prices show an annual average of 9.67% with a standard deviation of 23.91% from 1971 to 2019. On the other hand, the annual average percent return for the S&P 500 index fund is 8.93% with a standard deviation of 16.67% during the same time period. a. Construct a 99% CI

Question 10 An experimenter planned a study in which a crucial step was offering participants a sweet reward. and having aree sweet rewards that were equal in appeal was important. Thus, participants in a prestudy were asked which of three rewards they preferred. 0f the 6D participants, 12 preferred cupcakes, 2:5 preferred candyr bars, and 22
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A production filling operation has a historical standard deviation of 6 ounces. When in proper adjustment, the mean filling weight is 50 ounces. A quality control inspector wants to test if the filling process is in proper adjustment. He selects a random sample of 55 containers and the sample mean turns out to be 48.6 ounces. Conduct the test at

Write the binomial probability and the normal probability for the shaded region of the graph. Find the value of each probability and compare the results. Write the binomial probability for the shaded region of the graph and find its value. Select the correct choice below and fill in the answer box within your choice. (Round to four decimal places

Statistics question 1. Suppose you are the CEO of a large school bus company. You just figured out that you have to let one of your drivers go. You want to use the objective criteria of on-time performance to decide which of your two most recent hires to lay off. Suppose the two most recent hires were both an average of five minutes late. a. What
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part of a wider improvement initiative, the hospital manager is considering how the hospital'sblood bank service can be made more efficient and more effective. At present, the main blood bank, where donated blood is stored, is at a large regional hospital about 80km away. The local hospitalhas only a small blood bank facility where typically only

Create a plot with "Rate" as the y variable and "date" as the x variable. Include the equation and R2 in the plot. Create a new variable for X which is the sequence of 1 through the last "Date" value. This can be created in the column next to the "Rate" variable. Then, do a linear regression with "rate" as the Y variable and the new column of

Stats Question 15 2 pts Instructions Scenario A recent study looked to determine if stress scores differed by gender in residences of local assisted living facilities. A total of 160 residences were surveyed using a standardized stress questionnaire that monitors stress levels on a ten-point scale (0 = no stress, 10 = high levels of stress). You
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Is there a formula for this I can use? Question 10 (1 point) Given P(A) = 0.89, P(B) = 0.52, P(C) = 0.87 and that events A, B, and C are independent, what is P(A, B, and C). Answer in decimal form. Round to 3 decimal places as needed. Your
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Consider the partially completed one-way ANOVA summary table below. a) Complete the remaining entries in the table. b) How many population means are being tested? Sum of Source Squares c) Using a = 0.01, what conclusions can be made concerning the Degrees of Freedom Mean Sum of Squares F Between 68 population means? ? Within 25 Total 218 29 Click
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I am looking at output for REG procedue. I don't understand the difference between Squared Semi-partial corr Type I and Squared Semi-partial T ype II and likewise Squared Partial Corr Type I and Squared Partial Corr Type II . I understand the difference between partial and semipartial correlation. I just don't get "Type I" and "Type II". Where do

A university requires applicants to submit their transcripts from high school, scores for a standardized scholastic achievement test, letters of recommendation, and a letter describing their goals. Admission decisions are based on a combination of all four data sources. The university realizes that students who may be weak in one area, can still

A soft drink dispenser can be adjusted to deliver any fixed number of ounces of soft drink. If the machine is operating with a standard deviation in delivery equal to 0.2 ounces, what should be the mean setting so that a 12-ounce cup will overflow less then 1% of the time? Assume a normal distribution for ounces delivered.

the radio on their commute to work. a. In E14 find the sample proportion (p-hat) by entering the formula =average(C2:C101) b. In E15 find q-hat by entering the formula =1-E14 C. In E16 find z for a 95% confidence interval by entering the formula =norm inv(.025,0,1) d. In E17 find the stdev of the proportion by entering the formula
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There are sixteen shirts in your closet, eight blue and eight green.You randomly select one shirt to wear on Monday, and then a different one on Tuesday.You wear a blue shirt on Monday and a green shirt on Tuesday.Determine whether the scenario involves independent or dependent event.Find the probability.

Test: Week 2 Test (4.1-4.5, 5.1-5.3, 10.1-10.2) Time Remaining: 02:11:14 S This Question: 5 pts 17 of 20 (6 complete) This Test: 100 pt Question Help Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer
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50 components are placed on a life test. The recorded times to failure, in hours, are given in the Excel file "Assignment 3 Question 2 Data.xls". The sample data are suspected of coming from a population of lifetimes that can be adequately modeled by an exponential distribution. Analyze the sample data in the following steps: (a) Construct a

Question 40 A drug tester claims that a drug cures a rare skin disease 85% of the time. The claim is checked by testing the drug on 100 patients. If at least 78 patients arecured, the claim will be accepted. Find the probability that the claim will be rejected assuming that themanufacturer's claim is true. Use the normal distribution to

A sample of academicians was surveyed about their loyalty to the university. They were asked "If you were given an offer by another university equivalent to or slightly better than your present academic position, would you remain with the university or take the other position? Table 4 represents the responses of the 200 academicians in the survey

Assume that a sample is used to estimate a population proportion p . Find the 98% confidence interval for a sample of size 217 with 58 successes. Enter your answer as an open-interval ( i.e. , parentheses) using decimals (not percents) accurate to three decimal places. C.I. =

1. The weights of all people living in a particular town have a distribution that is skewed to the right with a mean of 142 pounds and a standard deviation of 27 pounds. Let x be the mean weight of a random sample of 65 persons selected from this town. a) Find the mean and standard deviation of the sampling distribution, x. b) Comment on the shape
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Question (1 point) The outcome of the F test in ANOVA is the decision to REJECT the null hypothesis. On the basis of this which of the following is warranted? the conslusion that the independent and dependent variables are related O computation of eta-squared O computation of differences O all are warranted none are warranted Question _ (1 point)
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A specific phone application records the distance in miles of its members' exercise runs. There are 24,112 members of this app. The data set called " Running Distance " contains each member's last recorded run distance in miles. Find the proportion of all members using this app whose last run was 5 miles or longer (assuming 5 miles is recorded in

The bod temperatures in degrees Fahrenheit of a sample of 5 adults in one small town are: Assume body temperatures of adults are normally distributed. Based on this data, find the 95% confidence interval of the mean body temperature of adults in the town. Enter your answer as an open-interval [i.e., parentheses] accurate to twp decimal places
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Hello, I hope you can help me with this question. Having a hard time this semester. Thank you! The question: Bill Alther is a zoologist who studies Anna's hummingbird ( Calypte anna ). (Reference: Hummingbirds, K. Long, W. Alther.) Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and

The accompanying information address the known loads of calcium oxide (CaO) from nine distinct examples and the comparing loads controlled by a standard synthetic method. The referred to weight is treated as the autonomous variable X. CaO present (x) 3.0 7.0 11.5 15.0 19.0 CaO discovered (y) 2.7 6.8 11.1 14.6 18.8 2A.0 30.0 35.0 39.0 23.5 29.7

7. In a particular county in Texas, about 28% of the wells that are drilled nd water at 150 feet or less. A \"dowser\" (who uses a divining rod to nd a location for a well) claims to be able to nd water at a higher rate than that. There are records that show, of 75 wells for which he has found the location, 25 of them found water at 150 feet or
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Multiple Choice Questions Samples of size 25 are selected from a population with mean 40 and standard deviation 7.5. The mean of the sampling distribution of sample means is 040 O25 07 5 O0.625
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PUT FINAL ANWSERS IN BOLD THANK YOU :) Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean =192 days and standard deviation =17 days. Complete parts (a) through (f) below. (a) What is the probability that a randomly selected pregnancy lasts less than 186 days? The probability that a randomly

Previous: You are at a coffin convention (that welcomes vampires and non-vampires) with mirrored walls. Yoknow that some vampires can be reflected in mirrors but that most can't; you estimate that 90% ofvampires have no reflection. Also, there are some harmless people that can't be reflected in mirroreven though they are not vampires. You think
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Help with part (d)please! In the following probability distribution, the random variable x represents the number of activities a parent of a K to 5th~grade student is involved in. Complete parts (a) through (f) below. X||1|2|3| 4 P(x) | 0.407 | 0.196 | 0.126 | 0.169 | 0.102 '21 t\" A. 0.5- 0.4- 0.3 0.2 0.1- (c) Compute and interpret the mean of
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Are Yankees fans more diehard than Boston Red Sox fans? Or do Red Sox fans supersede them? To investigate one aspect of the competing fan bases, researchers conducted a survey to compare the proportion of diehard fans for each fan base who can name every player on their respective team's 26-man roster. Researchers randomly sampled 400 diehard

QUESTION 8 The production manager of a company has asked for your assistance in analyzing a production process. This process involves drilling holes whose diameters have to be 2 inches. A random sample of 100 measurements had a sample mean of 1.99 inches and a standard deviation of 0.08 inches. The null hypothesis that you are going to test is
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9 Consider a continuous-time Markov chain {X(t)} whose jump chain is the success run chain from Problem 16. Give a condition on the holding time parameters ?(k), k = 0, 1, ... guaranteeing that {X(t)} has a stationary distribution (remember the previous problem). 40 Consider a linear birth-death process where the individual birth rate is ? = 1,
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AP statistics Question 7 (1 point) Referring to the data set of weights of hummingbirds (in grams) randomly selected from a population, below, which of the following normal probability plots is consistent with the data set? (Make the plot on your calculator. It's just one of the plot types in STAT PLOT. Look up NormProbPlot in your manual if you
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Please help me answer the following question provided below. 1. Explain the difference between a Type I error and a Type II error? Then, imagine a table that illustrates the relationship between the nature of the null hypothesis and your action as a researcher (which includes potential Type I and Type II errors), and apply the four possible
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The are between z= -0.8 and z = 1.3 under the standard normal curve is ( round to four decimal places as needed)

While conducting a survey to find what proportion of the population liked polar bears over penguins, the researchers found that .3515 of the population like polar bears. 1000 people were surveyed for the study. Build a confidence interval for the proportion of the people who liked polar bears over penguins with a 99% confidence level. What is the

The number of text messages sent by 2513yearolds over the past month are as follows: 3'53 615 STE 541 522 651 824 611 3'92 354- 936 833 912 5?? 681 513 639 598 5'99 67m 936 988 T29 5?9 881 Click here for the Excel Data File a. Construct the frequency distribution using classes of 500 up to 600, 600 up to 700, etc. b. Construct the relative
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Please assist on what to write on data exploration for a quantitative study? The data required was generated using the Bloomberg database, I'm supposed to do Pearson's correlation and linear regression See below data AMPLATS ZAR 1443,15 1126,19 1065,41 1163,05 1264,17 1304,12 1254,08 1109,95 976,53 754,19 1047,34 1199,50 1307,33 1212,48 1127,68

Test: Week 1 Test ...
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E) compute a 95% confidence interval, the population mean crime rate for all Denver neighborhoods. lower limits and upper limits. can you send the answer a little bit faster please ? The following data represent crime rates per 1000 population for a random sample of 46 Denver neighborhoods. I 63.2 36.3 26.2 53.2 65.3 32.0 65.0 66.3 68.9 35.2 25.1
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i need help on this question Q4. (25 points) Claim: p 5 20% , the test statistic is z = [1.33. Signicance level is .2 A) Find the null hypothesis and alternative hypothesis in a symbolic form B) Is it a left-tailed test, right tailed test or two tailed tests? C) Use TI 84 and Table A2 to nd P-value D) Use TI 84 and Table A2 to nd critical value E)
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. Hylo chrysoscelis is a type of tree frog with a distinct mating call. Field biologists wanted to know if the temperature of its natural habitat affects the frog's mating call, so they sampled 23 frogs and measured the ground temperature where they sat and their mating call frequency. The correlation between ground temperature and mating call
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Find a data set on the internet. Some suggested search terms: Free Data Sets, Medical Data Sets, Education Data Sets. Introduce your Data Set and Cite the Source. What trends are noticed in your data set? Based on the trends and the history of your data set, make a claim. What kind of test (left, right, two tailed) would you have to complete?

Use the sample informationx x= 40, = 3, n = 18 to calculate the following confidence intervals for assuming the sample is from a normal population. (a) 90 percent confidence. (Round your answers to 4 decimal places.) From _________ to _____________ (b) 95 percent confidence. (Round your answers to 4 decimal places.) From _________ to _____________

Pat is the manager of a real estate group that is part of a larger real estate company. Here are the total number of home sales from 2019 for all the agents at the entire company. 15 20 3 5 6 8 9 10 10 4 5 6 9 4 3 14 2 5 8 Pat wants to know if her own real estate group, which has 4 agents (the sample, in this case), has sold more homes than the
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A researcher expects a treatment to increase the scores. The treatment is evaluated using a one-tailed hypothesis test, and the obtained (or 'calculated'j value is z = +1.?2. Based on this result, what is the correct statistical decision? 0 The researcher should fail to reject Hg with either or = .05 or o' = .01 0 Cannot answer without additional
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The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution.1,2711,2501,2291,1941,2681,3161,2751,3171,275 (a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s .

Please explain step by step! A psychologist wants to test whether there is any difference in puzzle-solving abilities between boys and girls. Independent samples of eight boys and twelve girls were chosen at random. The boys took a mean of 32 minutes to solve a certain puzzle, with a standard deviation of 4.1 minutes. The girlstook a mean of 34

An emergency room tracked admissions over a 48-hour period. The following table summarizes admissions by severity as well as cataloging if the patient was experiencing symptoms related to COVID-19. A patient is selected at random. ADMISSIONS DATA COVID?COVID? SEVERITY YesNo Mild1024Moderate2165Severe1730Life-threatening860 What is the probability

The body needs vitamin D in order to use calcium. An experiment is designed to study the effects of calcium and vitamin D supplements on the bones of first-year college students. The outcome measure is the total body bone mineral content (TBBMC), a measure of bone health. Three doses of calcium will be used: 0, 300, and 600 milligrams per day

Type I and Type II Errors Balancing the Risks of Errors in Hypothesis Testing The U.S. FDA is responsible for approving new drugs.Many consumer groups feel that the approval process is too easy and, therefore, too many drugs are approved that are later found to be unsafe.On the other hand, a number of industry lobbyists have pushed for a more

Question 7 2 pts Blue Origin launches a rocket at t = 0 seconds. It's height, in meters above sea-level, as a function of time is given by h (t) - -4.9t2 + 226t + 129. Assuming the rocket will splash down into the ocean, at what time does splashdown occur (rounded to 3 decimal places)? O The rocket splashes down after 23.061 seconds. The rocket
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