QUESTION 10Mindy finds a 96% confidence interval for the mean height of American women. Kenny finds a 96% confidence interval for themean height of American men. The standard deviation of American women's heights is 3.5 inches, while the standard deviation ofAmerican men's heights is 4 inches.а.Whose confidence interval is more likely to capture the true population mean, Mindy or Kenny's? Or are they equally likely?Explain your answer.b.Whose confidence interval will have a larger margin of error, Mindy or Kenny's? Or will they be the same?Explain your answer.

Confidence Interval: Confidence interval is the interval estimate of the population parameter. It is…

Answered: Mindy finds a 96% confidence interval…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Mariah and Amanda began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Mariah took a test in English and earned a 81, and Amanda took a test in Art History and earned a 61.8. Use the fact that all the students' test grades in the English class had a mean of 75.7 and a standard deviation of 9, and all the students' test grades in Art History had a mean of 60.7 and a standard deviation of 10.3 to answer the following questions.a) Calculate the z-score for Mariah's test grade.z=b) Calculate the z-score for Amanda's test grade.z=c) Which person did relatively better? Mariah Amanda They did equally well.
Gabriel and Lucia took a road trip across the country. The room costs, in dollars, for their overnight stays are listed in the accompanying table. What does Chebyshev's theorem say about the number of the amounts that are within three standard deviations of the mean? Click the icon to view the room costs in dollars. There are at least observations that are within three standard deviations of the mean. (Round up to the nearest whole number.) Room Costs ($) 92 106 118 170 184 181 119 248 138 133 122 250 0 X
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Assume you had the following information regarding three different tests you took: The MATH test mean was 70; the standard deviation was 2; your score is 66. The VERBAL test mean was 60; the standard deviation was 3; your score is 57. The SCIENCE test mean was 80; the standard deviation was 3; your score is 83. On which of the 3 tests did you have your worst performance, relative to other students? A. Math B. Verbal C. Science
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
Arthur has two children, Zeke and Lucy, who competed in a track meet. The results were as follows: Zeke ran the 400 m event in 55.9 seconds. The mean time for all runners was 56.6 seconds and the standard deviation was 2.07 seconds. Lucy ran the 200 m event in 26.4 seconds. The mean time for all runners was 27.8 seconds and the standard deviation was 1.81 seconds. What was the z-score for Zeke's time? What was the z-score for Lucy's time? Who ran a better race, relatively speaking? O Zeke O Lucy
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You are applying for a job at two companies. Company A offers starting salaries with μ=$34,000 and σ=$4,000. Company B offers starting salaries with μ=$34,000 and σ=$9,000. From which company are you more likely to get an offer of $42,000 or more? Choose the correct answer below. A. Company B, because data values that lie within one standard deviation from the mean are not considered unusual. B. Company A, because data values that lie more than two standard deviations from the mean are considered unusual. C. No difference, because data values that lie more than three standard deviations from the mean are considered very unusual.
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