Mathematics Questions and Answers October 19, 2019

In order to solve problems quickly, it is best that problem-solving teams consist of members who are ______. a. cognitively diverse b. equally representative of males and females c. virtually the same d. from different generations

Explain the impoExplain the importance of sampling in the application of inferential statistics in forensic science. Why is simple random sampling the preferred sampling method? What are at least two other sampling methods that are used, and why are they implemented?rtance of sampling in the application of inferential statistics in forensic

Penelitian ini menggunakan Uji T atau Uji ANOVA: Uji ini digunakan untuk membandingkan rata-rata antara dua atau lebih grup. Dalam penelitian ini, uji T atau ANOVA dapat digunakan untuk membandingkan emisi gas karbon, inovasi lingkungan, dan nilai perusahaan antara perusahaan yang berbeda

Random sample of 43 subjects who identified themselves as compulsive buyers was obtained and given a questionnaire. They had a mean questionnaire score of 0.62 with a standard deviation of 0.17. Test the claim that the population of self-identified compulsive buyers has a mean greater than the mean of 0.56 for the general population. Use a 0.05

Continuing from above, in repeated random samples, we expect approximately 95% of all differences in sample means x 1 x 2 x 1 x 2 will fall within the observed bounds of the interval above. Choice 1 of 2: correct Choice 2 of 2: incorrect

Consider the following data values. 5 , 14 ,18 , 2 , 16, 5, 18 , 20 a) Calculate the mean. b) Calculate the median. c) Determine the mode. d) Describe the shape of the distribution.

The city of Raleigh has 10200 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 250 randomly selected registered voters was conducted. 119 said they'd vote for Brown, 128 said they'd vote for Feliz, and 3 were undecided. Give the sample statistic

A paint manufacturer uses a machine to fill gallon cans with paint (1 gal=128 ounces). The manufacturer wants to estimate the mean volume of paint the machine is putting in the cans within 0.5 ounce. Assume the population of volumes is normally distributed. (a) Determine the minimum sample size required to construct a 90% confidence interval for

Research Scenario: Assume you have managed to administer a survey questionnaire regarding media consumption behavior and class performance of college students and have collected a sample of 66 randomly selected students at UM. There are five variables in the data set: 1) Case ID; (CaseID) 2) Gender (1=female, 2=male); (Gender) 3) Time spent on

You are interested if there is a preference for type exams in statistics. Students are given the option of open book (student can bring in whatever they like), closed book (students must memorize all formulas), or have a standardized cheat sheet (formulas) prepared by the instructor provided. You survey a group of students and get the following

Bookstore sales rose 13.7% this year. If sales this year were 111,150 copies, find last year's sales. Round to the nearest whole number.

A survey of 2306 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 411 have donated blood in the past two years. Complete parts (a) through (c) below. Click here to view the standard normal distribution table (page 1).LOADING... Click here to view the standard normal distribution table

Information is given below for each student on two variables not included in the model, namely, intelligence test score (X2) and high school class rank percentile (X3). (Note that larger class rank percentiles indicate higher standing in the class, e.g., 1% is near the bottom of the class and 99% is near the top of the class.) Plot the residuals

The amount of a bill for a table at a lakeside restaurant on a weekend night is normally distributed with mean $220 and standard deviation $20.50. What is the probability of a bill for a table at this restaurant on a weekend night being below $150? (Use information above. Round z-scores to the ten-thousandths place.)

A medical engineering company creates x-ray machines. The machines the company sold in 1995 were expected to last six years before breaking. To test how long the machines actually lasted, the company took a simple random sample of six machines. The company got the following results (in years) for how long the x-ray machines lasted: 8, 6, 7, 9, 5,

After reviewing the scenario, conduct the following analysis as you deem necessary to understand the data and present findings. Pick appropriate variables of your choice and conduct a correlation. The data set contains simulated data to represent a random elementary school in the US. This fictitious elementary school consists of grade K-5 and has

Good questions will: Require time for students to formulate an answer. Encourage students to ask their own questions. Promote higher-level thinking. All of the answers are correct

Statistics, please do not combine the calculated steps. Please make sure the steps are calculated correctly show each step step-by-step. Please make sure it shows the T score, proportion, n1, n2, etc

Please send me answer in type form strictly prohibited handwritten solution don't use chatgpt Or copied content show your own work with step by step solution specially mentioned formula and concept. Select the true statement(s). 1. A confidence interval for a population mean is guaranteed to contain the true value of . 2. Many different twosided

how many times a year do you take your pets to the veterinary. (quantitative) (continuous) (ordinal)

What does a randomized poll need to be accurate? Answers A. a sample How have cell phones made it more difficult to collect random samples for polls? Answers A. Callers' names are displayed, so many people choose not to answer the calls. B. People are polled two times because everyone has a landline and a cell phone. C. Cell phones neatly

Question 1 (1 point) Saved The end behaviour of a quintic function can extend from: O quadrant I to quadrant II O quadrant II to quadrant I quadrant Il to quadrant IV O quadrant Ill to quadrant IVQuestion 2 (1 point) Use the graph below to answer the following question and select the best answer. Which equation does the graph represent? y= 2x2 +

Should you use estimates to determine whether there are more hours of darkness in December than in November and January combined? Explain.

In a large supply of poker chips, 50% are colored blue. Three chips are selected with replacement. Let X be the number of blue chips drawn. a. Compute x to two decimal places. b. Compute x to two decimal places. Please solve clearly.

Chapter 7.2 Homework Score: 1/13 1/13 answered Question 4

Chapter 7.2 Homework 1 13 answered Score 113 Question 4 You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on constructing a confidence interval however, you are not sure how many citizens should be included in the sample. If you want your sample estimate to be within 4 years

Hello tutors! Please help me with this! I NEED IT ASAP WITHIN 3 MINUTES! I will rate helpful Consider x^2 > x, is it true in all cases? * 1 point O No, because only positive real numbers can make it true. O No, because only negative real numbers can make the equation true O No, because if we substitute 1 and 0, it will make the statement false O

Researchers recruited a sample of 40 female and 40 male heterosexual Caucasian undergraduate students from British universities for a study of the attractiveness of body types. Among adults, a body mass index (BMI, in kg/mz) value between 18.5 and 24.9 is considered healthy, but attractiveness may not be entirely about health. Using a 3D computer

number 37 for section 9.5 37. Find the equation of the line through (1, -2) and perpendic tion of ular to [4, 1]'. 55. (1, 38. Find the equation of the line through (0, 1) and perpendicu lar

In an automobile repair and service industry, the average number of defective items in all the lots of automobile parts produced by a machine last week was 8. The supervisor believes that the mean number of defective parts produced by the same machine will differ in the present week. To test whether the average differs from 8, he samples 30 lots

A chemist invented an additive to increase the lifespan of rechargeable battery. The said additive will extend on average the battery's lifespan to 48 hours.

What is the value of Z if only 13.57% of all possible Z-values are larger?

A data set has a mean of 25 and a standard deviation of 12. If a data value has a z-score of , what was the original data value? Round your answer to the nearest hundredth.

Housing prices in a small town are normally distributed with a mean of 128,000 and a standard deviation of $8,000. Use the empirical rule to complete the following statement. Approximately 99.7% of housing prices are between a low price of and a high price of?

Factors that Influence Purchase intention on Respondent's Profile Purchase Intention physical market Sex Availability & Convenience Age Price Course Product Value & Quality Year Level Shopping Experience Annual family income Social Influence Purchase intention on online market

The mean height for women in a certain area is 64.5 inches and the standard deviation is 0.75 inches. It is known that the population is normally distributed. Show your work or what you enter into a calculator. A. What is the probability that a randomly selected woman is shorter than 64 inches? (6 pt) B. A sample of 50 women was collected. What is

Use the spinner below. 12 11 2 10 9 UI O P (2) =

Use the spinner below. 12 1 11 10 p(2)

14,15 Question 14 Suppose that a fair, 6 sided die is rolled. Let X indicate the event that an odd number is rolled (in other words, = 1 if an odd number is rolled and X = 0 otherwise). Let Y indicate the event that 3, 4, or 5 is rolled (in other words, Y = 1 if 3, 4, or 5 is rolled and Y = 0 otherwise). Find P (X = 0, Y = 1). a) 0 2/3 b ) 0 1/ 2

10. 8 Consider the image below. Let f1 = refl(1) and f2 = rot(C, 90). Find the image of the point A under the composition f1 followed by f2 (denoted f2 0 f1). In your construction, clearly label fi(A) and (f2 0 f1) (A). O

If the density of an object is less than the density of water, the object will float in water. Conversely, if it is greater, it will sink. Water has a density of about 0.58 ounces per cubic inch. A baseball has a diameter of 2 7/8'' and weight 5 1/4 ounces. A. What is the volume of the baseball in cubic inches? B. How many ounces does each cubic

Use properties of integrals, together with x dx = bz - a2 and b x2 dx = 63 - 23 2 3 to prove the following inequality. It / 2 x sin(x) dx s 8 We note that 0 S x = 0s sin(x) s 2 Complete the proof by selecting the correct statement from the choices below. n / 8 O Then x sin(x) SX = n / 8 2 x sin(x) dx s x dx = 021 T. 2 NH = o 8 IT / 2 O Then x

__ _... unuullurvhlhu 0 Question 2 v On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ of an ind1v1dual. a. What is the distribution of X? X ~ N(S,S) b. Find the probability that a randomly selected person's

Do Homework - Section 6.1 - Personal - Microsoft Edge X @ https://mylab.pearson.com/Student/PlayerHomework.aspx?homeworkld=631006600&questionld=4&flushed=false&cld=70647318centerwin=yes Fall 2022 MAT 152 Sec 153/153C Anaya Archie 10/04/22 5:03 PM E Homework: Section 6.1 Question 6, 6.1.23 HW Score: 47.73%, 5.25 of 11 points Part 1 of 4 O Points: 0

The power of a belt drive is given by the function P(v) = 100v - 3 16 V, where v is the linear velocity and P is the power in amps. For what value of v is the Power at a maximum?For a certain function fix}, f'{2} = O and f'ix) > D for 4*: 3H 2. Which statement is not true

This utilizes the SIR Model. S flows into I and I flows back into S, there is no R as this is a modified version of the model. SIR Model is typically used to predict disease transmission, however it is now be used to calculate subscription patterns. S' = -aSI +bI, I' = aSI - bI; b = 1/160 and a = rate of transmission. 20 people joined after t = 1,

KINDLY HIGHLIGHT ANSWERS \fEl Part {1'} Find the estimated average height for a on e-year-old. (Use your eou ation from part (d). Round your answer to one decimal place.) cm Find the estimated average height for a thirteen-yearold. [Use your equation from part (d). Round your answer to two decimal places.) cm El Part {9} Does it appear that a line

We expect a car's highway gas mileage to be related to its city gas mileage (in miles per gallon, mpg). Data for all 12591259 vehicles in the government's 2019 Fuel Economy Guide give the regressionline highway mpg=8.720+(0.914city mpg)highway mpg=8.720+(0.914city mpg) for predicting highway mileage from citymileage. Find the predicted highway

Question 1 The average time to run the 5K fun run is 24 minutes and the standard deviation is 2.2 minutes. 44 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X - N( b. What is the distribution of a? a - N( c. What is the

OO 32n + 4 Does the series Trn+1 converge or diverge? Justify your answer. n=1

32n 4 Does the series converge or diverge Justify your answer. nl

The following data represent the level of health and the level of Education Excellent Good Fair Poor D education for a random sample of 1662 residents. Complete parts Not a H.S. graduate 73 159 113 117 (a) and (b) below. H.S. graduate 65 121 113 102 Some college 95 166 66 104 Bachelor Degree or higher 79 111 84 94 Click the icon to view. the

Test: Test 3 [Lessons 13-19] Find the equation of the parabola described below. Find the two points that define the latus rectum, and graph the equation. focus at (5,0), directrix the line x = - 5 The equation of the parabola with focus (5,0) and directrix the line x = - 5 is (Use integers or fractions for any numbers in the equation.) The two

Under conditional pdf s for continuous random variables. 3.1 1.16. Suppose that X and Y are distributed according to the joint pdf 2 fx, y (x, y ) = = . (2x + 3y), 0

Research Scenario: There has been some evidence in the past indicating that people with visible tattoos are viewed more negatively than people without visible tattoos. Researchers attempting to mimic this study in 2010 conducted a similar study. They first obtained overall ratings of attractiveness for a woman with no tattoos shown in a color

Candy bars : 100 Grand ( 22g of sugar ) , Reese's ( 18g of sugar ) , KitKat ( 19g of sugar ) , Heath Bar ( 24g of sugar ) ,Caramello ( 25g of sugar ) , Almond Joy ( 21g of sugar ) ,Hershey's ( 25g of sugar) Watchamacallit ( 21g of sugar ) , Mounds ( 21g of sugar ) , Dove ( 23g of sugar ) , Crunch ( 24g of sugar ) , Butterfinger ( 21g of sugar

1. Demand per hour for gasoline at a local station is normally distributed with a mean of 860 gallons and std deviation of 55 gallons. What is the probability that demand is greater than1800 gallons over a 2-hour period ? Enter your answer as a decimal value, rounded to 4 decimal places 2. Demand per hour for gasoline at a local station is

Explain thoroughly, please; all assistance is appreciated. The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 120, while the mean score was ?5 and the standard deviation was 9. 48 5? do\" F5 84 .03 1'02 Distribution ofTes: Scores Use the "E_mpirical Rule", not a

Part 2: The following data is the daily high temperature for St. Cloud MN in June of 2021. The data has been sorted from low to high. 81 84 64 65 74 76 78 78 79 80 88 85 86 87 84 86 84 85 85 86 98 89 89 91 92 94 95 96 96 97 Given the mean of 85.1 and a standard deviation is 8.5. Using this information and the Empirical Rule to answer the following

3. A gambler at the Mohegan Sun complained about the outcomes on the dice at the tables, because he claims that they seem loaded! The dice were taken off the table and tested one at a time. Once die was rolled 300 times and the following frequencies were recorded: Outcome 1 2 3 4 5 6 Observed 62 45 63 32 47 51 Frequency Using a 1% level of

Basic Calculus 4) What type of discontinuity does the function exhibits if lim f(x ) does not exist because lim f(x) # lim f(x)? x-oct x ->c UPJAJ JIZAH VI TENT ON AMMU2 GNOS32 A. Essential B. Infinite C. Jump D. Removable 5) What type of discontinuity does the function exhibits if lim f (x) does not exist because lim f (x) = too and x->c asplod

Assume that a procedure yields a binomial distribution with a trial repeated n=8n=8 times. Use either the binomial probability formula (or technology) to find the probability of k=3k=3 successes given the probability p=0.72p=0.72 of success on a single trial. (Report answer accurate to 4 decimal places.) P(X=k)=P(X=k)=

Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 18. Use the empirical rule to determine the following.(a) What percentage of people has an IQ score between 46 and 154? (b) What percentage of people has an IQ score less than 82 or greater than 118? (c) What percentage of people has an IQ score

Concepts: what does the test do, what is its use, what are its assumptions, what are its limitations 1. Chi Square 2. Exploratory Factor Analysis Please give a clear explanation by answering: what does the test do, what is its use, what are its assumptions, what are its limitations. Do not give a handwritten answer. Be direct and concise. Thank you

I need typed answer don't write in a paper Patient survival times after a certain type of surgery have a very right-skewed distribution due to a few high outliers. Consequently, which statement is most likely to be correct? Median > Midrange. Mean < Median. Mean > Midrange. Mean > Trimmed Mean.

Please make sure you follow the instructions given on the assignment page in Learn. You must attach all Word and Excel les to receive full credit. 1. Describe when a researcher would use a two-factor ANDUA to analyze data. A researcher would use a bye-factor ANOVA to analyze data in terms of making a comparison that involves more than two samples

A company is going to make a storage container with sheet steel walls. The container will be in the shape of a rectangular prism, as shown below. If the sheet steel costs $20 for each square meter, how much will the sheet steel cost in total? '21]: $5 xo? f La 61121

In Chapter 0, we have talked about lines that are tangent to circles and in the textbook there were references to lines that are tangent to other types of curves. If we have a function x) and we are looking at the point (a, f(a)) then the line that is tangent to the function at that point will touch the curve at the point and goes in the direction

3 3 5 0 Considerons la matrice B = 0 0 5 3 7 0 Trouver une base pour Im B

To estimate the percentage of a species of rodent that carries a specific viral infection, 175 rodents are randomly selected and examined, and 101 of them are found to be infected. Based upon this, find a 95% confidence interval for the proportion of all rodents of this species that are infected with the virus. Then find the lower limit and upper

I. 1. (5 pts) You went to a casino and a dealer gave you two cards from a deck of 52 cards. What is the probability that you will get a pair (i.e, two 105, two jacks, two queens, etc.). (a) (5:) (b) (1.3)(3) (c) GEMS/(522) (d) CHEM?) I.2. (5 pts) Assume you have an urn with 5 cards. Two of those cards are red and the remaining three cards are

Solve it correctly please. I will rate accordingly with multiple votes..,.,., The is estimated by the O population proportion; sample proportion sample proportion; population proportion O neither option is correct

Section 3: Homework 1. Suppose the probability of a continuous random variable X, occurring over the range from two to seven, is constant. a. Draw a picture of the PDF. b. Find the PDF function, f(x). c. Find P(3

15 15. in a recent poll, 3 random sample of adults in s emphasizing that a product is "Made In our country, ome country (18 years and older) was asked, "When you see an ad " are you more likely to buy it, less likely to buy it, or neither more nor less likely to buy it?" The results of the survey, by age group, are presented in the following

Constants Stefan-Boltzmann Constant, o = 5.67 x 10-8 wm-2 K-4 Conversion Formula To convert from Celsius to K: T(K) = TIC) + 273.15 . 1 HCI (microcurie)= 37000 Bq . 1 Bq = 1 decays/s . 1 Gy = 0 000001 Ci . 1 J/kg = 1 HCi (microcurie) . 1 6E-13 J = 1 MeV Scientific Notation If an item requires that you type your inputs in scientific notation,

Find the critical value. If there is excel formula please use www-awa.aleks.com C my Home | myLU Lu Interact: ALEKS Homework Link A ALEKS - Tracy Long - HW: 9.5 Hypothesis Te HW: 9.5 Hypothesis Tests for a Standard Deviation... Question 2 of 4 (1 point) | Question Attempt: 1 of 3 abies: A sample of 25 one-year-old girls had a mean weight of 24.1

The Department of Health and Human Services has funded several Health Maintenance Organizations (HMOs). A sample of their average annual costs per person is as follows: $591 $546 $451 $494 $437 $527 $602 $561 $523 $481 Calculate the Mean, Standard Deviation, and Variance. Show your work.

Question 15 (6 points) Of 500 randomly selected medical students, 50 said that they planned to work in a rural community. Find 90% confidence interval for the true proportion of all medical students who plan to work in a rural community. The answers below represent approximate values. [0.078, 0.122] [0.075, 0.125) [0.01, 0.122] [0.178, 0.122]

Problem 3. The severity of individual claims has a Pareto distribution with pa- rameters a : 3 and 0 : 6000. Use the central limit theorem to approximate the probability that the sum of 200 independent claims will exceed 800,000

5) (10 points] As an overconfident chess player, you record the amount of time [minutes] it took you to beat your opponent. After tallying n = 20 wins over the previous year, you visualize your data using the following histogram: Time to Victory . 19.2 19.4 19.6 19.3 20.0 Time Y = 19.76 minutes 3 = 0.235 Shapiro Wilk Test P value = 0.0019 a) (3

Convert the measurement to the specified unit. Round to 4 decimal places if necessary. 55.340 cm = km Check 2022 6 144 70 + esc 2 % & 2 3 4 5 6 8 Q W E R T Y U

Points: 0.18 of 1 Save n list K Nine experts rated two brands of coffee in a taste-testing experiment. A rating on a 7-point scale (1 = extremely unpleasing. 7 = extremely pleasing) is given for each of four characteristics: taste, aroma, richness, and acidity. The jeristics. Complete parts (a) through (d) X n 3 Data table n 4 Expert Brand A Brand

You are testing the claim that the mean GPA of night students is different from the mean GPA of day,r students. You sample 20 night students, and the sample mean GPA is 2.59 with a standard deviation of 0.42. You sample 55 day students, and the sample mean GPA is 2.89 with a standard deviation of 0.63. Test the claim using a 5% Level of

Make it in a paper by hand step by step pleasee At the Tecsufone company, it was determined that the time it takes technicians to assemble a digitizer is normally distributed with a mean of 72 minutes and a standard deviation of 6 minutes. a) If one of these technicians is randomly selected, find the probability that he assembles a digitizer

10.46 (f.c) If Y=X2, where X ~ U(0,1), determine the PDF of Y. Next perform a computer simulation using the realizations of Y (obtained asym = x , where X is the mth realization of X) to estimate the PDF p, (y) . Do your theoretical results match the simulated results

run a simple regression of your own choosing on 2 quantitative variables that you feel are related to each other. Remember that both variables must be quantitative (which are measured or counted) and not qualitative (which indicate information in terms of a quality, characteristic or category). Once you have selected your dependent variable and

The following observations are for two quantitative variables, x and y . Observation x y 1 12 61 2 55 45 3 10 84 4 11 80 5 43 36 6 39 33 7 47 64 8 67 33 9 86 22 10 29 86 Observation x y 11 37 76 12 61 25 13 15 99 14 60 42 15 43 66 16 72 34 17 89 21 18 62 43 19 35 65 20 85 34 (a)Develop a crosstabulation for the data, with x as the row variable and

Suppose A = {-7+ 2 : " EN). (2.1) What is the boundary of A? Provide reasons for your answer. (2.2) Is A open, closed, both or neither? Provide reasons for your

statistics The table shown gives the national average pupil-teacher ratio in public schools over Year Ratio selected years. . Find the equation for the least squares line. Let x correspond to the number of years 1992 19.4 since 1992 and let y correspond to the average number of pupils per 1 teacher. 1994 19.7 b. Use the answer from part (a) to

3. Determine the first derivative of each of the following (simplify your answers as much as possible for T points): a) h(t) = (31+ 2) (21 -3)2 b) f(x) = (2x + 5 )es" ()

In a small town with a population of over 275,000, a study revealed that the amounts requested in residential loan applications submitted to a financial institution follow a normal distribution with an expectation of $150,000 and a standard deviation of $25,000. One morning, someone submits an application for a home loan. 1) What is the

A spherical balloon is inflated, and its volume increases at a rate of 17 in.^ 3 /min. What is the rate of change of its radius when the radius is 6 in? (Round to three decimal places if needed)

The population of a herd of deer is represented by the function A(t)=180(1.31)t, where t is given in years. To the nearest whole number, what will the herd population be after 6 years?

Ruth Jones, a robust 50-year-old insurance adjuster living in the northern suburbs of Chicago, has been diagnosed by a University of Illinois cardiologist as having a defective heart valve. Although otherwise healthy, Jones' heart problem could prove fatal if left untreated. Firm research data are not yet available to predict the likelihood of

The following is data for the first and second Quiz scores for 8 students in a class. First Quiz (Q1) | Second Quiz (Q2) 13 13 15 13 20 18 21 19 23 20 24 21 27 22 30 29 Plot the points in the grid below, then sketch a line that best fits the data. 32+ Q2 28 24 20 16 12 8 4 Q1 4 8 12 16 20 24 28 Clear All Draw: /AVO . test. Use the line above to

Consider the differential equation y' = Ty - 77y (a) Find all equilibria of the differential equation. (Enter your answers in ascending order.) Answer: y1 = , 12 = (b) Find the stability of the equilibria. y1 is stable V2 is stable

statistics A certain city holds a 100.5 mile running race. The following chart lists the times that a runner arrived at various mileage points along the way. Time (hours) Miles 0 2.501 11.67 4.011 17.92 6.438 27.67 8.063 33.05 8.641 36.32 9.793 43.78 11.982 52.02 13.547 57.32 17.582 72.19 21.393 80.99 22.357 85.79 23.994 91.9 26.811 99.84 a. What

Payment Previous Problem Problem List Next Problem For the functions below that have a removable discontinuity at * = a [if the function does not have a removable discontinuity, type in "n" below], state the value of g(a), where g(x) agrees with f(x) for x / a and is continuous everywhere. (a) f(z) = 1 - 2x - 8 -, a =-2 x+2 (b) f(z) = 2- 7 a = 7 2

Refer to the accompanying data set and use the 30 screw lengths to construct a frequency distribution. Begin with a lower class limit of 0.470 in., and use a class width of 0.010 in. The screws were labeled as having a length of 1/ 2 in. Click on icon to view the data. Complete the frequency distribution below. Length (in.) Frequency 0.470- (Type

Question 9 A surgeon would like to know how long it takes, on average, to complete a coronary artery bypass surgery. She samples 22 surgeries and logs the time it takes to complete each one, in hours: 3.5, 3.4, 3.6, 4.4, 3.4, 3.8, 4, 4.6, 3.6, 3.8, 4.1, 3.9, 4, 4.5, 3.6, 3.2, 4.2, 3.9, 3.4, 4.6, 4.2, 4.4 Assuming the population standard deviation

(Topic 2.13) Exponential and Logarithmic Equations and Inequalities Name: Find the inverse of the following functions. Be sure to use proper notation. 1. f (x) = 3x-2+1 2. g(x) = 4(2) 3x - 5 3. h(x) = =e2x+3 Here 4. k(x) = 3log(x + 1) - 2 5. p(x) = -4In(2x) 6. m(x) = 2-1083 (- 7. Let f (x) = 4(2)$1+3 and let g (x) = f-' (x). For what value of x

Part 1 of 4 Points: 0 of 1 An engineer wants to determine how the weight of a gas-powered car, x, affects gas mileage, y. The accompanying data represent the weights of various domestic cars and their miles per gallon in the city for the most recent model year. Complete parts (a) through (d) below. . BE Click here to view the weight and gas

Compute the sample correlation coefficient for the following data: x- 1, 3, 4, 7, 9. Y- 5, 7, 10, 11, 15. Can you be 95% confident that a linear relation exists between the variables. If so, is it positive or negative? Justify the answer. must reference formula from guide attached! Independent Samples, confidence interval for (p1 - |.I2): (' ')