A population of scores forms a normal distribution with a mean of = 80 and a
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A population of scores forms a normal distribution with a mean of μ = 80 and a standard deviation of σ = 10.
a. What proportion of the scores have values between 75 and 85?
b. For samples of n = 4, what proportion of the samples will have means between 75 and 85?
c. For samples of n = 16, what proportion of the samples will have means between 75 and 85?
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Related Book For
Statistics For The Behavioral Sciences
ISBN: 9781111830991
9th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau
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