A shareholders’ group, in lodging a protest, claimed that the mean tenure for a chief executive officer (CEO) was at least 9.5 years. A survey of companies reported in The Wall Street Journal found a sample mean tenure of x̅ = 7.22 years for CEOs with a standard deviation of s = 6.32 (The Wall Street Journal, January 2, 2007). Assume 90 companies were included in the sample. What is the p-value for your hypothesis test?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.4: Distributions Of Data
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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 9.5 years. A survey of companies reported in The Wall Street Journal found a sample mean tenure of x̅ = 7.22 years for CEOs with a standard deviation of s = 6.32 (The Wall Street Journal, January 2, 2007).

Assume 90 companies were included in the sample. What is the p-value for your hypothesis test?

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