Question: help A shareholders' group, In lodging a protest, claimed that the mean tenure for a chief executive officer (CEO) was at least nine years. A

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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 Y - 7.87 years for CEOs with a standard deviation of s = 6.36 years. (a) Choose the correct hypotheses that can be used to challenge the validity of the claim made by the shareholders group. Ho: years H = (b) Assume that is companies were included in the sample. What is the p value for your hypothesis test? if required, round your answer to four decimal places, Years 0.0014 (C) AT O = 0.01, what is your conclubion We reject the null hypothesis. We can conclude that the mean tenure for a CEO is shorter than nine years

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