You may need to use the appropriate appendix table or technology to answer this question. A population has a mean of 200 and a standard deviation of 50. Suppose a sample of size 100 is selected and x is used to estimate μ. (Round your answers to four decimal places.)
(a) What is the probability that the sample mean will be within ±5 of the population mean?
(b) What is the probability that the sample mean will be within ±10 of the population mean?
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