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Subject; Statistics PROBLEM : Random samples of size 50 are repeatedly drawn from a Normal distribution...

Subject; Statistics

PROBLEM : Random samples of size 50 are repeatedly drawn from a Normal distribution with a mean 25 and a standard deviation 8.

⑴ What is the sampling distribution of .

⑵ What is the mean of the distribution in ⑴?

⑶ What is the standard deviation of the distribution in ⑴?

⑷ What is the probability for the sample mean to be in the interval from 20 to 30?

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