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-7.07 years for CEOs with a standard deviation of st '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. Ho: P years Ha: H 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. (c) At a 0.01, what is your conclusion? We reject the null hypothesis. We can conclude that the mean tenure for a CEO is shorter than nine ye

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Ons Problem 06-32 Algo (Hypothesis Tests)
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 7.07 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.
Ho: P =
years
Ha:
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.
(c) At a = 0.01, what is your conclusion?
We reject
Question 1 of 1
Icon Key
the null hypothesis. We can
conclude that the mean tenure for a CEO is shorter than nine years.
Transcribed Image Text:Ons Problem 06-32 Algo (Hypothesis Tests) 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 7.07 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. Ho: P = years Ha: 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. (c) At a = 0.01, what is your conclusion? We reject Question 1 of 1 Icon Key the null hypothesis. We can conclude that the mean tenure for a CEO is shorter than nine years.
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