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A shareholders' group is lodging a protest against your company. The shareholders group claimed that the mean tenure for a chief exective office (CEO) was less than 10 years. A survey of 89 companies reported in The Wall Street Journal found a sample mean tenure of 8.6 years for CEOS with a standard deviation of 4.8 years (The Wall Street Journal, January 2, 2007). You want to formulate and test a hypothesis that can be used to challenge the validity of the claim made by the group, at a significance level of 0.005. Your hypotheses are: Ho: u > 10 H1: µ < 10 What is the test statistic for this sample? What is the D-velue for this sample? This test statistic leads to a decision to reject the null accept the null fail to reject the null As such, the final conclusion is that there is sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is sufficient evidence to conclude that the population mean tenure for CEOS is less than 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is less than 10

A shareholders' group is lodging a protest against your company. The shareholders group claimed that the mean tenure for a chief exective office (CEO) was less than 10 years. A survey of 89 companies reported in The Wall Street Journal found a sample mean tenure of 8.6 years for CEOS with a standard deviation of 4.8 years (The Wall Street Journal, January 2, 2007). You want to formulate and test a hypothesis that can be used to challenge the validity of the claim made by the group, at a significance level of 0.005. Your hypotheses are: Ho: u > 10 H1: µ < 10 What is the test statistic for this sample? What is the D-velue for this sample? This test statistic leads to a decision to reject the null accept the null fail to reject the null As such, the final conclusion is that there is sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is sufficient evidence to conclude that the population mean tenure for CEOS is less than 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is less than 10

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 shareholders' group is lodging a protest against your company. The shareholders group claimed that the mean tenure for a chief exective office (CEO) was less than 10 years. A survey of 89 companies reported in The Wall Street Journal found a sample mean tenure of 8.6 years for CEOS with a standard deviation of 4.8 years (The Wall Street Journal, January 2, 2007). You want to formulate and test a hypothesis that can be used to challenge the validity of the claim made by the group, at a significance level of 0.005. Your hypotheses are: Ho: µ > 10 H1:µ < 10 What is the test statistic for this sample? What is the p-velue for this sample? This test statistic leads to a decision to reject the null accept the null fail to reject the null As such, the final conclusion is that there is sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is sufficient evidence to conclude that the population mean tenure for CEOS is less than 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is less than 10
Transcribed Image Text:A shareholders' group is lodging a protest against your company. The shareholders group claimed that the mean tenure for a chief exective office (CEO) was less than 10 years. A survey of 89 companies reported in The Wall Street Journal found a sample mean tenure of 8.6 years for CEOS with a standard deviation of 4.8 years (The Wall Street Journal, January 2, 2007). You want to formulate and test a hypothesis that can be used to challenge the validity of the claim made by the group, at a significance level of 0.005. Your hypotheses are: Ho: µ > 10 H1:µ < 10 What is the test statistic for this sample? What is the p-velue for this sample? This test statistic leads to a decision to reject the null accept the null fail to reject the null As such, the final conclusion is that there is sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is equal to 10. there is sufficient evidence to conclude that the population mean tenure for CEOS is less than 10. there is not sufficient evidence to conclude that the population mean tenure for CEOS is less than 10
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