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According to a recent Current Population Reports the population distribution

According to a recent Current Population Reports, the population distribution of number of years of education for self-employed individuals in the United States has a mean of 13.6 and a standard deviation of 3.0.

a. Identify the random variable X whose population distribution is described here.

b. Find the mean and standard deviation of the sampling distribution of for a random sample of size 100. Interpret the results.

c. Repeat part b for n = 400. Describe the effect of increasing n.

a. Identify the random variable X whose population distribution is described here.

b. Find the mean and standard deviation of the sampling distribution of for a random sample of size 100. Interpret the results.

c. Repeat part b for n = 400. Describe the effect of increasing n.

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