A simple random sample of size n=36 is obtained from a population with mean=89 and standard...

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A simple random sample of size n=36 is obtained from apopulation with mean=89 and standard deviation = 6

?(c) What is P ( x overbar less than or equal to 86.65)?? ?

(d) What is P(88.5 < x overbar < 91.25)?

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

?(b) What is P ( x overbar > 90.85 )?

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