A normal distribution has a mean of m 5 54 and a standard deviation of s 5

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A normal distribution has a mean of m 5 54 and a standard deviation of s 5 6.

a. What is the probability of randomly selecting a score less than X 5 51?

b. What is the probability of selecting a sample of n 5 4 scores with a mean less than M 5 51?

c. What is the probability of selecting a sample of n 5 36 scores with a mean less than M 5 51?

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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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