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Assume that the mean number of yearly burglary attempts in Normal, IL is = 21, with a standard deviation of =2.8.For a random sample of

Assume that the mean number of yearly burglary attempts in Normal, IL is = 21, with a standard deviation of =2.8.For a random sample of 42 years, answer the following:

What is the mean of the distribution ofx?

What is the standard deviation of the distribution ofx?

What is the probability of obtaining a sample mean of less than 20 burglary attempts?

What is the probability of obtaining a sample mean greater than 21.5 burglary attempts?

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