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In a random sample of 24 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean u. What is the margin of error of p? Interpret the results. The confidence interval for the population mean u is (| D (Round to one decimal place as needed.) The margin of error of u is (Round to one decimal place as needed.) Interpret the results. O A. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. O B. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. O C. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval.

In a random sample of 24 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean u. What is the margin of error of p? Interpret the results. The confidence interval for the population mean u is (| D (Round to one decimal place as needed.) The margin of error of u is (Round to one decimal place as needed.) Interpret the results. O A. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. O B. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. O C. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval.

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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In a random sample of 24 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean u. What is the margin of error of p? Interpret the results. The confidence interval for the population mean u is (| D (Round to one decimal place as needed.) The margin of error of u is (Round to one decimal place as needed.) Interpret the results. O A. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. O B. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. O C. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval.
Transcribed Image Text:In a random sample of 24 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean u. What is the margin of error of p? Interpret the results. The confidence interval for the population mean u is (| D (Round to one decimal place as needed.) The margin of error of u is (Round to one decimal place as needed.) Interpret the results. O A. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. O B. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. O C. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval.
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