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17. For random samples of size n = 25 selected from a nor- mal distribution with a mean of mean of u = 50 and

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17. For random samples of size n = 25 selected from a nor- mal distribution with a mean of mean of u = 50 and a standard deviation of o = 20, find each of the following: a. The range of sample means that defines the middle 95% of the distribution of sample means. b. The range of sample means that defines the middle 99% of the distribution of sample means

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