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Mathematics Questions and Answers June 05, 2023

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Question 7 of 11 me following questions were asked of a group of applicants for a scrofarsmip award Determine the level of data measurement (nominal, ordinal, interval, ratio) for the bold words in each question. Question Level of Measurement What is your date of birth? Ordinal What is your total family income? Ratio What is your highest level of
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Need help 90 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: Cumulative Frequency # of times floss per week Relative OFrequency . 0889 2 01111 __ 01556 b. What is the cumulative relative frequency for flossing 1 time per week? D a. Complete the
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Attempt 1: 20 attempts remaining. Find y as a function of z if y" 15y" + 56y' = 84e\
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Select all true statements about AutoFill in Excel. AutoFill applies a color fill to a cell. AutoFill copies formulas outside of a series. AutoFill fills nearby cells with data that follows a pattern. If the data is not part of a series, the data is copied. If cell contents is part of a series like months or days of the week, the AutoFill handle

At 5% significance level, a researcher conducted an ANOVA test comparing five groups with 10 observations in each group. The following is a partial ANOVA table. Sources of Variation SS df MS F P-value F-crit Between Difference 224 (b) (e) (g) 0.002 (h) Within Difference (a) (c ) (f) Total Variation 408 (d) The values in cells (b) and (c)

Identify a true statement about meta-analysis. Multiple choice question. It does not lead to clear conclusions. It is a combination of the actual results of a number of studies. It lacks a set of statistical procedures. It does not require any previous research on the topic of interest

The weights (in pounds) of 30 newborn babes are listed below. 5.5 5.7 5.8 6.0 6.1 6.1 6.3 6.4 6.5 6.6 6.7 6.7 6.7 6.9 7.0 7.0 7.0 7.1 7.2 7.2 7.4 7.5 7.7 7.7 7.8 8.0 8. 1 8.1 8.3 8.7 (a) Find the 81st percentile. Write a sentence interpreting your answer. (b) Find the 20' percentile. Write a sentence interpreting your answer. (c) Find the
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Provide the 95% confidence and prediction limits, as well as the predicted point value of elevation for ponderosa pine at 39.006 degrees N latitude? > (lat.coef (pipo.coef int lat.coef*33 pipo.coef (Intercept) 527.294

ournal 3: History of Home Runs Pages 17 - 19 in your course packet provide a history of the record number of home runs in the American and National Leagues for each year 1901-1999. Consider only the American League data for the years 1920 - 1999. 1. You are to find one trend in the home run records data. (not teams or names) 2. You will then

PSY2061-Research Methods Lab week 3 midweek Week 3 Midweek Assignment Instructions Steroids and Behavior In this assignment, you will be provided a fictitious study. Click here for instructions on how to add the Data Analysis ToolPak to Microsoft Excel. Click here to download the study. Look at the variable values and read the descriptions of the

In a study of depressed patients, it was found that their lengths of stay in a hospital were normally distributed with a mean of 25.5 days and a standard deviation of 6.5 days. 1. Identify u and a for this question. 25.5 days; 0 - 6.5 days 2. If a patient, who is suffering from depression, is selected at random, find the probability that his or

A high school astronomy teacher wants to know if using iPad apps will help his students better understand the celestial orbits. He assigns each student to one of two groups: using iPad apps during instruction or not using them. He then gives his students a unit test and records their scores. Is this an example of an experimental study or an

Centralize data, find the covariance matrix and the principal components for the following dataset in 2D: A B 0 2 2 2 O
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content area top Part 1 The following are diameters of some common household wires No. 10 is 0.102 in., No. 11 is 0.090 in., No. 12 is 0.081 in., No. 14 is 0.064 in., and No. 16 is 0.051 in. (a) The diameter of No. 11 wire is how much smaller than the diameter of No. 10 wire? (b) Is No. 16 wire larger or smaller than No. 14 wire? What is the

The lengths (in kilometers) of a random sample of 18 rivers on the South Island of New Zealand that flow to the Pacific Ocean are listed in table below. Lengths of Rivers (in km) 161 95 98 66 322 64 288 64 48 97 56 80 140 97 169 64 136 121 What units would go on each of your answers above

Take each statement and state the key parts in words. Tell a story from each of the financial statements. For example, for the income statement, the story starts like this, "Total Revenues in 2010 were $10 billion, while Cost of Goods Sold was $8 billion, leaving a gross profit margin of $2 billion, or 20 percent of total revenues....After taking

A medical researcher is interested in determining if there is a relationship between blood pressure and regular walk for adults over 50. A random sample of 240 adults over 50 is selected and the results are given below. Test whether the blood pressure is independent of regular walk. (Use = 0.05.) Blood Pressure Low Moderate High Walkers 35 64 27

The KL distance can be used to measure the information lost when approximating one distribution with another. In this context, the distribution being approximated is known as the: Question 10Answer a. Base distribution b. Approximation distribution c. Target distribution d. Reference distribution

When trying to estimate the strength between two nominal variables, the best statistic to use is... A) Confidence Intervals B) Chi-square C) Lambda D) Kendall's tau-b

Implement y_pred [Graded] Implement the function y_pred(X, w) that computes (=1|;,) for each row-vector in the matrix X. Recall that: (|;,)=((+)) Since y_pred calculates the probability of the positive label +1, ((+)) simplifies to (+), which you must outp

The p value is the..... Percentage of the whole represented by the value of interest Primary indicator of statistical relevance Probability that the median is within two standard deviations of the mode Probability that a difference as large as that observed would occur by chance alone

The linear regression line is: Question 22 options: a) the best fitting straight line which maximizes deviations from the points b) the best fitting straight line which minimizes deviations from the points c) none of the options d) usually curved e) the best fitting straight line through all points in the scatter plot

True or False: Boxplots illustrate where the mean is in the distribution. True or False: Boxplots illustrate where the mean is in the distribution. True False

Safari File Edit View History Bookmarks Window Help C 1 2 Q 8 4 Mon Feb 13 9:01 PM . .
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g. (10 points: 2 points for each part) Show the complete calculation process, no credit for answers without steps. The price of a stock is uniformly distributed between $30 and $40. a. What is the probability that the stock price will be more than $35? b. What is the probability that the stock price will be less than or equal to $34? c. What is

Nonrandom sampling include which of the following? Select all that apply Group of answer choices snowball volunteer direct convenience

A ______ involves the examination of the characteristics of--and possibly differences among--several samples or population measured at one point in time.

Please help solve Construct a 95% confidence interval for the population mean, J. Assume the population has a normal distribution. A sample of 20 college students had mean annual earnings of $3120 with a standard deviation of $677. A ($2135, $2567) B ($2803, $3437) C ($2657, $2891) D ($1324, $1567)
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Pleases help me with this homew. Thank you so muchhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh \f
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With a = .05, what is the critical t value for a one-tailed test with n = 25? O t = 2.708 Ot = 2.064 Ot = 1.711 Ot = 2.060
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Please answer the question number six in the 3-4 attachments: analyzing the graphs and all of the data given, and in red that I am put into the grade chart at the end, when comparing the BodPod method of body percent fat estimation to the other four methods studied, which two methods have the strongest association with the BodPod and which one has
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Video Refrence: Please cut and paste the website: Please cut and paste the website into your browser to view the video on embryological development https://www.thirteen.org/programs/nova/nova-lifes-greatest-miracle/ https://www.youtube.com/watch?v=U0L0mYi_ftc Name: ____________________ Date: ________Class/time:________(In: Videoembryology2.ws)

C8 X V A C D E F G H I J K L M N O P Sample Size 50 Given Sample Variance 0.006 Given W N Hypothesized Variance 0.004 Given Alpha Level 0.05 Given 6 Degrees of Freedom #N/A 7 Test Statistic #N/A Hint: we know the population variance. Which distribution is used with a known population variance? p - value #N/A Hint: what is the tail of our test? 9
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Identify and describe the four main goals of science. 2. List the steps involved in the research process. 3. Briefly explain what internal validity is and what external validity is? 4. Describe two ways a researcher can assess the reliability of a scale? 5. Draw a normal distribution, including the standard deviations and percentage of

Conlainformacindelatabla calculeel riesgodemorirenusuariosdetolbutamidayel riesgoen no usuarios (placebo), la razn de riesgos y la diferencia de riesgos. Por favor interprete todas y ponga todas las operaciones. Tabla.Riesgo demorirparadosgrupos recibiendotolbutamidaoplaceboenelProgramade Diabetes de Grupos de la Universidad, total y por categoras

Which polar coordinates represent the same point as below. Circle all that apply 1. Which polar coordinates represent the same point as 5,5 7 Circle ALL that apply. 22x 7 by -5, 20# 20# 27* BA e) f) -5, d). 5, -5 T 7
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In a course the students can get a grade from 50 to 100. Use MATLAB, Mathematica, or your favorite tool, to create a random variable x with 1000 element that is normally distributed to represent the grade of the course. Calculate the mean, standard deviation, variance, mode, and median for that variable x. Draw the histogram of x and fit it with

Solve the problem using the formula provided below ACTIVITY > A future businessman is set to study business course abroad for 5 yrs. He has 50,000 on his savings that he is planning to invest in business after graduation. He deposited his money on time deposit earning 3% annually. How much would be the value of his money after 5 yrs? The formula
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1) Consider the following table, where the unit of observation is an individual, and the dependent variable in each regression is annual income in dollars. Each column represents a separate regression. The standard errors of the coefficients are reported in parentheses. Woman is an indicator variable which equals 1 if an individual is a woman; and
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Levi conducted bottom trawl surveys to determine the catch per unit area (CPUA) and biomass of Trichurus lepturus. Using a bottom trawl with the following dimensions, he was able to catch 300 kilograms of fish after 4 hours of trawling at a speed of 1.3 km/minute. What is the CPUA (catch per unit area)? Bottom trawl used : Length of head rope =

If you were told that since these data were collected the life expectancy of females increased such that it is now 115% of what it was when these data were collected, what would be the new mean? (2 pts) mean was originally 70.16

If political affiliation is considered a population parameter in a specific U.S. state, then which of the following is an example of a sample statistic for this population Select the correct answer below: the political affiliation of people visiting the state. the political affiliations of the entire population in the state the political

Final Exam - Written out of 100 Marks -Part A - T / F Questions - Bold correct answer. 10 Marks (1 mark each) 1. T. F. Transportation charges are generally dependent on distance travelled. 2. T. F. When referring to product density for road transportation, higher densities mean higher carrier costs per cwt. 3. T. F. Buyers cannot declare a higher

The number of initial public offerings of stock issued in a 10-year period and the total proceeds of these offerings (in millions) are shown in the table. The equation of the regression line is ModifyingAbove y with caret equals 49.687 x plus 17 comma 554.13y=49.687x+17,554.13. Complete parts a and b. Issues, x 411 455 680 481 483 389 72 73 194

If there is 28% increase on a $5 item, then how much is the new cost for next year? Round to the nearest penny. Round your answer to 2decimalplaces

In a certain game, an urn contains 6 red, 6 white numbered balls. A ball is drawn at random from the urn. If this first ball is red, a second ball is drawn from the urn the colour of both balls is recorded. If, instead, the first ball was white, it is returned to the urn and a second ball is drawn. Only the colour of this second ball is then

What does a residual plot help you determine? 1 point It's a visual way to see if your coefficients of determination are accurate. It's a visual way to see if there is a pattern in your data set. It's a visual way to see if a linear plot is appropriate. It's a visual way to see if your model needs more input variables. 18. Question 18What does a

Baye's Decision Rule is also known as Multiple Choice average payoff rule. expected monetary value criterion. maximum monetary value criterion. maximax criterion. minimin criterion

If f(x) = 3x^5 and g(x)= \frac{x-1}{2x^2} , then what is the composite function of f(g(x)). Question 30Answer a. 3( \frac{x-1}{2x^2})^5 b. \frac{3x^5-1}{18x^{10}} c. \frac{3x^5-1}{18x^7} d. \frac{3x^5-1}{6x^7}

Which of the following is a situation in which you'd perform a matched pairs t test? Select one: a.an experiment where there's a statistically significant difference b.an experiment randomly assigns each subject to one of two treatments c.an experiment includes both control and experimental subjects d.an experiment has each subject undergo two

5 steps for hypothesis testing USE/EDIT this for each of the tests we will learn: independent t-test dependent means t-test ANOVA correlation regression 1. State your research and null hypothesis 2. Test statistics 3. Calculate ASSUMPTION: Homogeneity of variance is tested at .01, so I want to see a Levene's sig. (p value) that is > (greater than)

Participants were randomly allocated to one of two stress management therapy groups, or a waiting list control group. Their baseline levels of stress were measured before treatment, and again after 3 months of weekly therapy sessions. Please interpret the F test in the following table below for the predictor 'Group' and Baseline_Stress using a
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A person who files a civil action in district court must do so no later than Group of answer choices at any point following termination of the practice. the first year after the occurrence or termination of the practice. the second year after the occurrence or termination of the practice. d year after the occurrence or termination of the practice.

About this Assignment In this course, you have learned about trees in data structure, binary trees, and binary search trees. For this assignment, you will develop an application using the Java programming language. Assignment Prompt The application must address the following requirements: NP N S Include a user interface allowing a user to interact
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1hr29mins X Progress saved Submit and End & Vo- Question 1 25 pts 9 1 @ Details The acceptance rates for the fall 2013 at several Connecticut colleges are shown in the table below. The data was obtained from the College Navigator website maintained by the National Center for Education Statistics. Name Rate Albertus Magnus College 85 Central
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Research question: Are more than half of customers at a certain store men? H: p=0.50 H:p0.50Data were collected from a random sample of 30 customers. A single sample proportion test was conducted using Minitab and a p-value of 0.181 was computed. At the 0.05 alpha level we should [ Select ] the null hypothesis. There [ Select ] that more than half

Assume a population of 2, 4, and 12. Assume that samples of size n 2 are randomly selected with replacement from the population. Listed below are the nine different samples. Complete parts a through d below. 2,2 2,4 2,12 4,2 4,4 4,12 12,2 12,4 12,12 www (Round to three decimal places as needed.) b. Find the standard deviation of each of the
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Construct a 95% confidence interval of the population proportion using the given information. x = 75 n = 150

A firm manufactures a product that sells for $25 per unit. Variable cost per unit is $7 and fixed cost per period is $1440. Capacity per period is 1800 units. (a) Develop an algebraic statement for the revenue function and the cost function. (b) Determine the number of units required to be sold to break even. (c) Compute the breakeven point as a
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Realizar la lectura "Conceptos clave de los estudios de Gnero" de Hortensia Moreno y Eva Alcntara

Which of the following describes how the scatter plot appears? Select all that apply. 7 weak linear nonlinear negative Positive

Scenario 5 The state is trying to build a rectangular picnic area with one of the longer sides bordering a lake. Fencing is needed for the three sides not bordering the lake. Let x (in feet) be the width (shorter side) of the picnic area and let y (in feet) be the area of the picnic area. The final goal of this project is to find the dimensions

Refresher Math-Lesson 5 Examination Please read these instructions before you begin to answer the questions that follow. You are welcome to work your answers on this paper examination for your convenience. You will submit your final answers through an uploaded file through our app. When you are satisfied that your answers are correct, use the app

question1 8th-ed Chapter 07, Section 7.1, Problem 0083 The following data give the years of teaching experience for all ve faculty members of a department at a university. 5 9 11 9 21 Let x denote the years of teaching experience for a faculty member of this department. Write the population distribution of x
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A survey determines that 62% of the attendees at a conference have attended a similar conference in the last year. Suppose that 20 attendees are randomly selected. Show calculator commands and round to three decimal places. a- Find the probability that 6 or fewer of these attendees have attended a similar conference in the last year. b- Find the

For the following data set, find the range and the standard deviation (round to the nearest tenth:) 4, 6, 9, 10, 10, 10, 12, 14 Question 6 Select one: a. range: 10, standard deviation: 3.0 b. range: 10, standard deviation: 4.5 c. range: 8, standard deviation: 2.6 d. range: 8, standard deviation: 3.9

Please show all of your work. Thank you! Finish times (to the nearest hour) for 10 dogsled teams are shown below. Make a frequency table showing class limits, class boundaries, midpoints, frequency, relative frequencies, and cumulative frequencies. Use three classes. The class size of the given data is 24. (Round your answer for relative frequency
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Orden de trabajo 101: Smith Auto Parts hizo un pedido de 10,000 varillas de aluminio, de 3/4 de pulgada de dimetro y 12 pulgadas de largo. El precio de contado acordado para la orden de trabajo es de $7,000 y el cliente solicit que la fecha de terminacin sea el 21 de enero

State what additional information is required to in order to know that the triangles are congruent for the reason given. Write the congruent statement in corresponding order. 11) ASA 12) AAS U W 13) SAS 14) SAS M G K E X W 15) HL 16) SSS B E G B D A
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A random sample of150adults was given an IQ test. It was found that67of them scored higher than100. Based on this, compute a95%confidence interval for theproportion of all adults whose IQ score is greater than100. Then find the lower limit and upper limit of the95%confidence interval. Carry your intermediate computations to at least three decimal

Consider two parallel line segments. Part A: Find the slope ofwith endpoints C(7, 2) and D(4, 2). Show your work. (2 points) Part B: What is the value of y so thatwith endpoints A(4, y) and B(7, 4) is parallel toShow your work. (2 points)

In a certain game, an urn contains 5 red, 7 white numbered balls. A ball is drawn at random from the urn. If this first ball is red, a second ball is drawn from the urn the colour of both balls is recorded. If, instead, the first ball was white, it is returned to the urn and a second ball is drawn. Only the colour of this second ball is then

Nse nj studjues sht i interesuar t prdor t dhna dytsore, ai mund t kryej... A)Nj eksperiment B) Nj vzhgim C) Nj studim arkivor D) Nj intervist

Evaluate partial derivatives and second-order partial derivatives \f
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Q1 . Real data from a study reported in 1935 by B. Lowe of the lowa Agricultural Experiment Station . Donuts are traditionally a fried food and as such absorb some of the fat they are fried in . The amount and type of fat absorbed has implications for the healthfulness of the donuts . This study investigated whether there was any relationship
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2 + 3 + = 1 3 2 4 = 3 5 = 4

Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0 1 2 3 4 5 n Probability 0.654 0.218 0.004 0.023 0.013 0.008 (a) Find the mean, variance. and standard deviation of the probability distribution. Find the mean of the probability distribution. )1 = I] (Round to one decimal place as needed.) Find the variance
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Which of the following best describes the difference between product moment correlation and partial correlation? Product moment correlation only considers two variables at a time, while partial correlation considers two variables after removing the effects of other variables. Partial correlation only considers two variables at a time, while

This year Netflix has begun cracking down on password sharing. It is of interest what percentage of US Netflix users this will affect. In a random sample of 488 US Netflix users, 172 claim to share their password with a someone in a different household. a. What variable is recorded for each individual sampled? Classify the variable as categorical

17. Which of the following statements is not true about Huff Gravity Model? A. The model specifies two factors that assess the probability: (1) the attractiveness of the store's location and (2) the time it takes a consumer to travel to the store. B. It predicts the probability of a customer going to a specific store location. C. The formula

(show your work) Using the sets U= {1,2,3,4,5,6,7,8,9,10} A= {1,2,3,4,5} B= {1,3,5} C= {4,6} Find each of the following: 1) A u B 2) A u C 3) A n C 4)B n c 5) A' 6) B' For exercises 7-12 use the following information: Let D= {b, a, c, k} E= {t, a, s, k} F= {b, a, t, h}. Using these Sets, Find the following: 7. D' n E 8. F n D 9. (D n E) u F 10. D

1: True or False (20 pts) For each of the following statements, please indicate whether the statement is true or false and justify your answer. (a) (5 pts) If I solve an optimization problem, then add a new constraint and solve it again, the optimal solution must change. (b) (5 pts) An optimization problem with a discontinuous objective function

With the assistance of diagrams, charts, statistics and examples, written reports can be _________

What is the probability of rolling either a 2 or a 5 when you roll a single die? Round to the nearest 100th

A researcher conducted a study to estimate the mean resting respiratory rate among patients at an inpatient psychiatric Facility. They find a mean resting respiratory rate of 16 breaths per minute (BPM) and a 95% confidence interval for this mean of 4 BPM. Write an interpretation of this 95% confidence interval that is consistent with how we

Carmen uma adolescente de 16 anos de idade, vai ao hospital porque sente desconforto na parte inferior do abdome e marca uma consulta com o mdico: Mdico: "passe" (grita do consultrio at a sala de espera). Paciente: "Boa tarde, doutor" (ela na porta com medo de entrar). Mdico: o que est acontecendo? (atrs da mesa, sentado em sua cadeira, sem olhar

Draw and interpret a scatter plot for a set of paired data . Once a set of order pairs ( x , y ) of data values is collected , a graph can be drawn to rep - resent the data . This graph is called a scatter plot or scatter diagram . A scatter plot is a graph of order pairs of data values that is used to determine if a relationship exists between

The population of a village is measured for 5 consecutive years: YEAR 2017 2018 2019 2020 2021 POPULATION 309 498 490 481 555 The average growth rate in the 5-year period (rounded to 2 decimal places) is
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If a distribution is bell shaped, unimodal, and symmetric, then approximately 95% of the observations are between ____ standard deviation above the mean and ___ standard deviation below the mean. If a distribution is bell shaped, unimodal, and symmetric, then approximately 95% of the observations are between ____ standard deviation above the mean

#8: Split the dataframe Q8 into a training sample (75%) and holdout sample (25%). Build a predictive logistic regression model predicting Buy from all predictors (no interactions), choosing as your nal model the one suggested by the one standard deviation rule. Fit the model on the training sample, then report its misclassication RATE on your
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If a student has a score of 80 on their test and the average for the class M=70, with a SD=5, whats the students z score

Calculate the variance for salary (in dollars per hour) using this population data 15, 53, 59, 77, 21, 14

What are the upper and lower limits of the random variable for the Normal distribution? Multiple choice question. Zero and one, because the area under the curve represents a probability. No limits. It is asymptotic in both directions. The limits are plus or minus . The values x = a and x = b

What is the sampling method used in the following scenario? The marketing manager for an electronics chain store wants information about the ages of its customers. Over the next two weeks, at each store location, 100 randomly selected customers are given questionnaires to fill out asking for information about age, as well as about other variables

1. A nationwide survey of college seniors by the University of Michigan revealed that almost 70% disapprove of daily pot smoking, according to a report in Parade. If 12 seniors are selected at random and asked their opinion, find the probability that the number who disapprove of smoking pot daily is a. anywhere from 7 to 9 b. at most 5 c. not less
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The following data represent soil water content (percentage of water by volume) for independent random samples of soil taken from two experimental fields growing bell peppers. Soil water content from field I: x 1 ; n 1 = 72 1

AI please explain in a simpe way these terminologies and give medical examples 1. Define nominal, ordinal, interval, and ratio scales

Consider a tire-changing shop where the time it takes to change 4 tires on a car is normally distributed with mean 17 minutes and standard deviation 3.5 minutes. You have a low-performing employee and are trying to characterize their performance. You think that they are very slow. So slow, in fact, that they are in the worst (longest) 3% of all

What measurement scale is used in the following example? Incomes measured in dollars. Question 16 options: Interval Ratio Ordinal Nominal Question 17 (1 point) What measurement scale is used in the following example? Political outlook: extreme left, left-of-center, right-of-center, extreme right Question 17 options: Ordinal Ratio Nominal Interval

https://myopenmaths3.s3.amazonaws.com/ufiles/92149/Gould1997.pdf The article "The Median Isn't the Message" written by biologist Stephan Gould is attached above. Read this article and post your reaction to the article This article looks at statistics from a very personal perspective. Hence, you can include your personal reactions. However, do not

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