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A population of scores forms a normal distribution with a


A population of scores forms a normal distribution with a mean of U=80 and a standard deviation of o=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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Basic Statistics: A population of scores forms a normal distribution with a
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