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A random sample of the closing stock prices in dollars for a company in a recent year is listed below Assume that o is $2 26 Construct the 90% and 99% confidence intervals for the population mean Interprat the results and compare the widths of the confidence intervals 15.64 16.62 15,27 16.44 17.34 15,73 16.38 18.96 19.07 18 29 20.29 2251 19 54 17 12 22.77 15 05 The 90% confidence interval is SS) (Round to two decimal places as needed) The 99% confidence interval is SS (Round to two decimal places as needed.) Which statement below interprets the results correctly? The probability that the mean closing stock price is in the 90% confidence interval is about 90% and the probability that the mean closing stock price is in the 99% confidence interval is about 99% 90% of the mean closing stock prices are in the 90% confidence interval and 99% of the mean closing stock prices are in the 99% confidence interval There is 90% confidence that the mean closing stock price is in the 90% confidence interval and 99% confidence that the mean closing stock price is in the 99% confidence interval. The 90% confidence interval contains the mean closing stock price 90% of the time and the 99% confidence interval contains the mean closing stock price 99% of the time. Which interval is wider? OO O0

A random sample of the closing stock prices in dollars for a company in a recent year is listed below Assume that o is $2 26 Construct the 90% and 99% confidence intervals for the population mean Interprat the results and compare the widths of the confidence intervals 15.64 16.62 15,27 16.44 17.34 15,73 16.38 18.96 19.07 18 29 20.29 2251 19 54 17 12 22.77 15 05 The 90% confidence interval is SS) (Round to two decimal places as needed) The 99% confidence interval is SS (Round to two decimal places as needed.) Which statement below interprets the results correctly? The probability that the mean closing stock price is in the 90% confidence interval is about 90% and the probability that the mean closing stock price is in the 99% confidence interval is about 99% 90% of the mean closing stock prices are in the 90% confidence interval and 99% of the mean closing stock prices are in the 99% confidence interval There is 90% confidence that the mean closing stock price is in the 90% confidence interval and 99% confidence that the mean closing stock price is in the 99% confidence interval. The 90% confidence interval contains the mean closing stock price 90% of the time and the 99% confidence interval contains the mean closing stock price 99% of the time. Which interval is wider? OO O0

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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A random sample of the closing stock prces in dollars for a company in a recent year is listed below. Assume that o is $2.26. Construct the 90% and 99% confidence intervals for the population mean Interpret the resufts and compare the widths of the confidence intervals. 15.64 16.62 15.27 15.73 16.38 19.07 18.29 2261 16.44 17.34 18.96 20.29 19.54 17.12 22.77 16 05 The 90% confidence interval is (S S) (Round to two decimal places as needed.) The 99% confidence interval is (S S (Round to two decimal places as needed.) Which statement below interprets the results correctly? O The probability that the mean closing stock price is in the 90% confidence interval is about 90% and the probability that the mean closing stock price is in the 99% confidence interval is abaut 99% 90% of the mean closing stock prices are in the 90% confidence interval and 99% of the mean closing stock prices are in the 99% confidence interval There is 90% confidence that the mean closing stock price is in the 90% confidence interval and 99% confidence that the mean closing stock price is in the 99% confidence interval. The 90% confidence interval contains the mean closing stock price 90% of the time and the 99% confidence interval contains the mean closing stock price 99% of the time. Which interval is wider? The 99% confidence interval Click to selęct your answer(s).
Transcribed Image Text:A random sample of the closing stock prces in dollars for a company in a recent year is listed below. Assume that o is $2.26. Construct the 90% and 99% confidence intervals for the population mean Interpret the resufts and compare the widths of the confidence intervals. 15.64 16.62 15.27 15.73 16.38 19.07 18.29 2261 16.44 17.34 18.96 20.29 19.54 17.12 22.77 16 05 The 90% confidence interval is (S S) (Round to two decimal places as needed.) The 99% confidence interval is (S S (Round to two decimal places as needed.) Which statement below interprets the results correctly? O The probability that the mean closing stock price is in the 90% confidence interval is about 90% and the probability that the mean closing stock price is in the 99% confidence interval is abaut 99% 90% of the mean closing stock prices are in the 90% confidence interval and 99% of the mean closing stock prices are in the 99% confidence interval There is 90% confidence that the mean closing stock price is in the 90% confidence interval and 99% confidence that the mean closing stock price is in the 99% confidence interval. The 90% confidence interval contains the mean closing stock price 90% of the time and the 99% confidence interval contains the mean closing stock price 99% of the time. Which interval is wider? The 99% confidence interval Click to selęct your answer(s).
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