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QUESTION

A random sample of nequals=4949 observations is drawn from a population with a mean equal to 2222 and a standard deviation equal to 1414. a. give the mean and standard deviation of the​ (repeated) s

A random sample of nequals=4949 observations is drawn from a population with a mean equal to 2222 and a standard deviation equal to 1414.

a. give the mean and standard deviation of the​ (repeated) sampling distribution x overbarx.

b. describe the shape of the sampling distribution of x overbarx. does your answer depend on the sample​ size?

c. calculate the standard normal​ z-score corresponding to a value of x overbarxequals=18.518.5.

d. calculate the standard normal​ z-score corresponding to a value of x overbarxequals=2323.

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