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5. A random sample of n= 25 measurements is selected from a population with mean equal to 80 and standard deviation equal to 7. a.

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5. A random sample of n= 25 measurements is selected from a population with mean equal to 80 and standard deviation equal to 7. a. What is the probability that the sample mean will exceed 81? b. What is the probability that the sample mean will fall in the interval 79

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