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Suppose that you have a sample of 100 values from a population with mean ? =...

Suppose that you have a sample of 100 values from a population with mean ? = 500 and with standard deviation ? = 80. a. What is the probability that the sample mean will be in the interval (490, 510)? b. Give the interval that covers the middle 95% of the sample mean, using the zscore table.

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