A study considers whether the mean score on an MBA entrance exam for students in 2017 was any different from the mean of 400 for students in 1966 Test H0 400 against Ha 400 if for a nationwide random sample of 9,000 students who took the exam in 2017, y 397 and s 90 Show that the result is highly significant statistically, but not practically significant

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Question: A study considers whether the mean score on an MBA entrance exam for students in 2017 was any different from the mean of 400

A study considers whether the mean score μ on an MBA entrance exam for students in 2017 was any different from the mean of 400 for students in 1966. Test H0:

μ = 400 against Ha: μ = 400 if for a nationwide random sample of 9,000 students who took the exam in 2017,

¯y = 397 and s = 90. Show that the result is highly significant statistically, but not practically significant.

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