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For which of the following is a t-test appropriate for performing a hypothesis test? Select the correct answer below: O A convenient sample of 23 individuals is taken from the residents of a city with approximately normally distributed commute times. The sample mean is 19 minutes and the sample standard deviation is 2 minutes. O A population is used to obtain a sample mean of 53 and a sample standard deviation of 7 based on a convenient sample of size 19. O A sample mean of 70 and sample standard deviation of 7 are obtained using a simple random sample of size 19 from a normally distributed population. O A sample mean of 194 pages and a standard deviation of 37 pages are obtained using a simple random sample of 30 books from a public library having approximately normally distributed numbers of pages. The population standard deviation is 31.4 pages.

For which of the following is a t-test appropriate for performing a hypothesis test? Select the correct answer below: O A convenient sample of 23 individuals is taken from the residents of a city with approximately normally distributed commute times. The sample mean is 19 minutes and the sample standard deviation is 2 minutes. O A population is used to obtain a sample mean of 53 and a sample standard deviation of 7 based on a convenient sample of size 19. O A sample mean of 70 and sample standard deviation of 7 are obtained using a simple random sample of size 19 from a normally distributed population. O A sample mean of 194 pages and a standard deviation of 37 pages are obtained using a simple random sample of 30 books from a public library having approximately normally distributed numbers of pages. The population standard deviation is 31.4 pages.

MATLAB: An Introduction with Applications
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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For which of the following is a t-test appropriate for performing a hypothesis test? Select the correct answer below: O A convenient sample of 23 individuals is taken from the residents of a city with approximately normally distributed commute times. The sample mean is 19 minutes and the sample standard deviation is 2 minutes. O A population is used to obtain a sample mean of 53 and a sample standard deviation of 7 based on a convenient sample of size 19. O A sample mean of 70 and sample standard deviation of 7 are obtained using a simple random sample of size 19 from a normally distributed population. O A sample mean of 194 pages and a standard deviation of 37 pages are obtained using a simple random sample of 30 books from a public library having approximately normally distributed numbers of pages. The population standard deviation is 31.4 pages.
Transcribed Image Text:For which of the following is a t-test appropriate for performing a hypothesis test? Select the correct answer below: O A convenient sample of 23 individuals is taken from the residents of a city with approximately normally distributed commute times. The sample mean is 19 minutes and the sample standard deviation is 2 minutes. O A population is used to obtain a sample mean of 53 and a sample standard deviation of 7 based on a convenient sample of size 19. O A sample mean of 70 and sample standard deviation of 7 are obtained using a simple random sample of size 19 from a normally distributed population. O A sample mean of 194 pages and a standard deviation of 37 pages are obtained using a simple random sample of 30 books from a public library having approximately normally distributed numbers of pages. The population standard deviation is 31.4 pages.
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