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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.
