In a random sample of 21 people, the mean commute time to work was 33.4 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a t-distribution to construct a 90% confidence interval for the population mean µ. What is the margin of error of µ? Interpret the results. The confidence interval for the population mean u is (ID (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. It can be said that 90% of people have a commute time between the bounds of the confidence interval. O B. With 90% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. OC. If a large sample of people are taken approximately 90% of them will have commute times between the bounds of the confidence interval. O D. With 90% confidence, it can be said that the commute time is between the bounds of the confidence interval.

In a random sample of 21 people, the mean commute time to work was 33.4 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a t-distribution to construct a 90% confidence interval for the population mean µ. What is the margin of error of µ? Interpret the results. The confidence interval for the population mean u is (ID (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. It can be said that 90% of people have a commute time between the bounds of the confidence interval. O B. With 90% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. OC. If a large sample of people are taken approximately 90% of them will have commute times between the bounds of the confidence interval. O D. With 90% confidence, it can be said that the commute time is between the bounds of the confidence interval.

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Description: In a random sample of 21 people, the mean commute time to work was 33.4 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a t-distribution to construct a 90% confidenceinterval for the populati

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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