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8. A population has a mean u= 85 and a standard deviation o = 23. Find the mean and standard deviation of a sampling distribution

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8. A population has a mean u= 85 and a standard deviation o = 23. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 247. (Simplify your answer.) (Type an integer or decimal rounded to three decimal places as needed.)

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