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Statistics show on average an adult person receives 425 pieces of mail each year with a standard deviation of 50. What are the mean and the standard error of the mean of this sampling distribution if all possible samples of size 100 are selected?

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Answer:

The answer is 60.11

Step-by-step explanation:

An adult person receives 425 pieces of mail each year with a standard deviation of 50.

Now, we have the following details  :

Mean of sample = 425

sigma = 50

Standard error = [tex]\frac{425}{\sqrt{50} }[/tex]

= [tex]\frac{425}{7.07}[/tex] = 60.11

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