A population of scores forms a normal distribution with a


A population of scores forms a normal distribution with a mean of m = 80 and a standard deviation of s = 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?

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Basic Statistics: A population of scores forms a normal distribution with a
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