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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Related Book For
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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