A sample of n 5 4 scores is selected from a population with an unknown mean. The

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A sample of n 5 4 scores is selected from a population with an unknown mean. The sample has a mean of M 5 40 and a variance of s 2 5 16.

Which of the following is the correct 90% confidence interval for m?

a. m 5 40 6 2.353(4)

b. m 5 40 6 1.638(4)

c. m 5 40 6 2.353(2)

d. m 5 40 6 1.638(2)

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Essentials Of Statistics For The Behavioral Sciences

ISBN: 9781337098120

9th Edition

Authors: Frederick J Gravetter, Larry B. Wallnau, Lori Ann B. Forzano

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Question Posted: Jul 18, 2024 07:09 AM

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A sample of n 5 4 scores is selected from a population with an unknown mean. The

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Essentials Of Statistics For The Behavioral Sciences

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