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What is the standard error if the sample size is 30

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Reference no: EM132361789

A. Given that the population of quarters has a mean weight of 5.76g and standard deviation of 1.34g, what do you know about the mean of the sample means? (Hint: it is normally distributed).

B. What is the standard error if the sample size is 30?

C. Find P(z = 3.12).

Reference no: EM132361789

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