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 10 years. A survey of 85 companies reported in The Wall Street Journal found a sample mean tenure of 9.7 years for CEOS with a standard deviation of s = 4.3 years (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 > 10 Ha:µ < 10 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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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 10 years. A survey of 85
companies reported in The Wall Street Journal found a sample mean tenure of 9.7 years for CEOS
4.3 years (The Wall Street Journal, January 2, 2007). You don't
with a standard deviation of s
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 =
0.02. Your hypotheses are:
H.: µ > 10
Ha: µ < 10
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 10 years. A survey of 85 companies reported in The Wall Street Journal found a sample mean tenure of 9.7 years for CEOS 4.3 years (The Wall Street Journal, January 2, 2007). You don't with a standard deviation of s 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 = 0.02. Your hypotheses are: H.: µ > 10 Ha: µ < 10 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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