14. IQ scores form a normal distribution with a mean of m = 100 and a standard...
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14. IQ scores form a normal distribution with a mean of m = 100 and a standard deviation of o = 15. What is the probability of obtaining a sample mean greater than M = 103. show all work.
a. for a random sample of n = 9 people?
b. for a random sample of n = 25 people?
c. for a random sample of n = 100 people?
Related Book For
Essentials of Statistics for the Behavioral Sciences
ISBN: 978-1285056340
8th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau
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