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Describe the sampling distribution of x overbar

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Suppose a simple random sample of size n=81 is obtained from a population that is skewed right with mu equals 77 and sigma equals 9.

?(a) Describe the sampling distribution of x overbar.

(b) What is Upper P left parenthesis x overbar greater than 78.15 right parenthesis??

?(c) What is Upper P left parenthesis x overbar less than or equals 74.6 right parenthesis??

?(d) What is Upper P left parenthesis 75.85 less than x overbar less than 79.05 right parenthesis??

Reference no: EM132495769

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