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7.26 A random sample of size n = 49 is selected from a population with mean =...

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7.26 A random sample of size n = 49 is selected from a population with mean = 53 and standard deviation = 21.

a. What will be the approximate shape of the sampling distribution of X?

b. What will be the mean and standard deviation of the sampling distribution of x?

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Introduction To Probability And Statistics

Introduction To Probability And Statistics

ISBN: 9780176509804

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