Question

A shareholders' group, in lodging a protest, claimed that the mean tenure for a chief executive officer (CEO) was at least nine years. A survey of companies reported in The Wall Street Journal found a sample mean tenure of x = 7.27 years for CEOs with a standard deviation of s = 6.38 years.

(b) Assume that 85 companies were included in the sample. What is the p value for your hypothesis test? If required, round your answer to four decimal places.

Answer #1

the sample information:

This is a one sample T-test for the mean.

Test Statistic:

Hence we can conclude that we have no evidence that the mean tenure for a chief executive officer (CEO) was at least nine years

A shareholders' group, in lodging a protest, claimed that the
mean tenure for a chief executive officer (CEO) was at least nine
years. A survey of companies reported in The Wall Street Journal
found a sample mean tenure of x = 6.87 years for CEOs with a
standard deviation of s = 6.38 years.
(a)Choose the correct hypotheses that can be used to challenge
the validity of the claim made by the shareholders' group.
(b)Assume that 85 companies were included...

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Please SHOW YOUR Calculations and formulas in
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A shareholder’s group, in lodging a protest, claimed that the
mean tenure for a chief executive officer (CEO) was at least 9
years. A survey of companies reported in the Wall Street Journal
found a sample mean tenure of ?̅= 7.27 years for CEOs with a
standard deviation of 6.38 years.
1) Formulate a hypothesis that can be used to challenge the
validity of the claim made by the shareholder’s group.
2)...

A shareholders' group, in lodging a protest, claimed that the
mean tenure for a chief executive office (CEO) was at least ten
years. A survey of companies reported in the Wall Street Journal
found a sample mean tenure of x̄ = 8.66 years for
CEOs with a standard deviation of s = 7.39 years.
a. Formulate hypotheses that can be used to
challenge the validity of the claim made by the shareholders'
group.
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exective office (CEO) was at least 10 years. A survey of 120
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