Suppose a simple random sample of size n49 is obtained from

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Suppose a simple random sample of size n=49 is obtained from a population with u=71 and o=21.

a) Describe the sampling distribution of x. (Distribution skewed right, left, normal, uniform, unknown, normal)

Find the mean and standard deviation of the sampling distribution of X.

b) What is P (x > 74)?

c) What is P (x less than or equal to 63.65)?

d) What is P (66.95 < x < 76.4)?

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