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 8 years. A survey of 88 companies reported in The Wall Street Journal found a sample mean tenure of 5.4 years for CEOS with a standard deviation of 5.9 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 0.05. Your hypotheses are: Ho: µ > 8 H1: µ < 8 What is the test statistic for this sample? (Report answer accurate to 3 decimal places.) What is the p-value for this sample? (Report answer accurate to 4 decimal places.) This test statistic leads to a decision to reject the null Uaccept 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 8. there is not sufficient evidence to conclude that the population mean tenure for CEOS is equal to 8. O there is sufficient evidence to conclude that the population mean tenure for CEOS is less than 8. there is not sufficient evidence to conclude that the population mean tenure for CEOS is less than 8.
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 8 years. A survey of 88 companies reported in The Wall Street Journal found a sample mean tenure of 5.4 years for CEOS with a standard deviation of 5.9 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 0.05. Your hypotheses are: Ho: µ > 8 H1: µ < 8 What is the test statistic for this sample? (Report answer accurate to 3 decimal places.) What is the p-value for this sample? (Report answer accurate to 4 decimal places.) This test statistic leads to a decision to reject the null Uaccept 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 8. there is not sufficient evidence to conclude that the population mean tenure for CEOS is equal to 8. O there is sufficient evidence to conclude that the population mean tenure for CEOS is less than 8. there is not sufficient evidence to conclude that the population mean tenure for CEOS is less than 8.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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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 8 years. A survey of 88 companies reported in The Wall
Street Journal found a sample mean tenure of 5.4 years for CEOS with a standard deviation of 5.9 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 0.05. Your hypotheses are:
Ho:µ > 8
H1 : µ < 8
What is the test statistic for this sample?
(Report answer accurate to 3 decimal places.)
What is the p-value for this sample?
(Report answer accurate to 4 decimal places.)
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 8.
there is not sufficient evidence to conclude that the population mean tenure for CEOS is equal to 8.
there is sufficient evidence to conclude that the population mean tenure for CEOS is less than 8.
there is not sufficient evidence to conclude that the population mean tenure for CEOS is less than 8.
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