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A population has a mean of 200 and a standard deviation of 50. Suppose a simple...

A population has a mean of 200 and a standard deviation of 50. Suppose a simple random sample of size ̅ 100 is selected and ? is used to estimate ?. 1. What is the probability that the sample mean will be within ±5 of the population mean? 2. What is the probability that the sample mean will be within ±10 of the population mean?

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