You are given the sample mean and the population standard deviation. Use this information to construct the 90%and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidenceintervals.From a random sample of 66 dates, the mean record high daily temperature in a certain city has a mean of 85.44°F.Assume the population standard deviation is 13.81°F.The 90% confidence interval is (.).(Round to two decimal places as needed.)The 95% confidence interval is (.).(Round to two decimal places as needed.)Which interval is wider? Choose the correct answer below.The 90% confidence intervalThe 95% confidence intervalInterpret the results.O A. You can be 90% confident that the population mean record high temperature is outside the bounds ofthe 90% confidence interval, and 95% confident for the 95% interval.B. You can be certain that the mean record high temperature was within the 90% confidence interval forapproximately 59 of the 66 days, and was within the 95% confidence interval for approximately 63 of the 66days.OC. You can be 90% confident that the population mean record high temperature is between the bounds ofthe 90% confidence interval, and 95% confident for the 95% interval.O D. You can be certain that the population mean record high temperature is either between the lower bounds ofthe 90% and 95% confidence intervals or the upper bounds of the 90% and 95% confidence intervals.

Given that: n=66 Sample size x=85.44 Sample mean σ=13.81 Population standard deviation

Answered: You are given the sample mean and the…

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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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 65 dates, the mean record high daily temperature in a certain city has a mean of 84.70°F. Assume the population standard deviation is 14.54°F.
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