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QUESTION
Suppose a simple random sample of size n = 64 is obtained from a population with mu = 88 and sigma = 8. (a) Describe the sampling distribution of
(b)P (xbar >89.5) = __ (Round to four decimal places as needed.)
(c)P (xbar < or equals 86) = __(Round to four decimal places as needed.)
(d)P (87 < xbar < 90.15) = __ (Round to four decimal places as needed.)
