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(The Wall Street Journal, January 2, 2007). You don't know the population standard deviation but can assume it is normally distributed. 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 a = 0.02. Your hypotheses are: H.:µ = 9 Ha:µ < 9 What is the test statistic for this sample? test statistic = (Report answer accurate to 3 decimal places.) What is the p-value for this sample? p-value (Report answer accurate to 4 decimal places.)

(The Wall Street Journal, January 2, 2007). You don't know the population standard deviation but can assume it is normally distributed. 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 a = 0.02. Your hypotheses are: H.:µ = 9 Ha:µ < 9 What is the test statistic for this sample? test statistic = (Report answer accurate to 3 decimal places.) What is the p-value for this sample? p-value (Report answer accurate to 4 decimal places.)

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 at least 9 years. A survey of 99 companies reported in The Wall Street Journal found a sample mean tenure of 7.8 years for CEOS with a standard deviation of s = (The Wall Street Journal, January 2, 2007). You don't know the population standard deviation but can assume it is normally distributed. 5.9 years 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 a = 0.02. Your hypotheses are: H.:µ = 9 6 > 1:"H What is the test statistic for this sample? test statistic = (Report answer accurate to 3 decimal places.) What is the p-value for this sample? p-value = (Report answer accurate to 4 decimal places.)
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 at least 9 years. A survey of 99 companies reported in The Wall Street Journal found a sample mean tenure of 7.8 years for CEOS with a standard deviation of s = (The Wall Street Journal, January 2, 2007). You don't know the population standard deviation but can assume it is normally distributed. 5.9 years 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 a = 0.02. Your hypotheses are: H.:µ = 9 6 > 1:"H What is the test statistic for this sample? test statistic = (Report answer accurate to 3 decimal places.) What is the p-value for this sample? p-value = (Report answer accurate to 4 decimal places.)
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