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A researcher has that a sample of 100 values from a population with mean = 700 and with standard deviation = 160. a. What is

A researcher has that a sample of 100 values from a population with mean = 700 and with standard deviation = 160.

a. What is the probability that the sample mean will be in the interval (680, 700)?

b. Give an interval that covers the middle 95% of the distribution of the sample mean.

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