Question: In the EAI sampling problem, the population mean isand the population standard deviation is$4000. For n=20, there is a0.4972probability of obtaining a sample mean within

In the EAI sampling problem, the population mean isand the population standard deviation is$4000. For n=20, there is a0.4972probability of obtaining a sample mean within$600 of the population mean. Usez-table.

a.What is the probability that is within$600of the population mean if a sample of size40is used (to4decimals)?

b.Answer part (a) for a sample of size80(to4decimals).

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