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 79 dates, the mean record high daily temperature in a certain city has a mean of 85.60°F. Assume the population standard deviation is 14.98°F. The 90% confidence interval is (). (Round to two decimal places as needed.)
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 79 dates, the mean record high daily temperature in a certain city has a mean of 85.60°F. Assume the population standard deviation is 14.98°F. The 90% confidence interval is (). (Round to two decimal places as needed.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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