A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that is $2.38. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. 18.37 16.85 19.49 21.42 18.78 21.52 The 90% confidence interval is ($.$. (Round to two decimal places as needed.) 17.42 15.51 21.35 15.32 18.09 17.36 15.42 20.46 15.98 20.53
A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that is $2.38. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. 18.37 16.85 19.49 21.42 18.78 21.52 The 90% confidence interval is ($.$. (Round to two decimal places as needed.) 17.42 15.51 21.35 15.32 18.09 17.36 15.42 20.46 15.98 20.53
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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