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2. For each of the following, calculate the z-statistic. a. Sample mean= 8.00, population mean= 5, population standard deviation= 6, N= 16 b. Sample mean=

2. For each of the following, calculate the z-statistic. a. Sample mean= 8.00, population mean= 5, population standard deviation= 6, N= 16 b. Sample mean= 4.00, population mean= 2, population standard deviation= 8, N= 25 c. Sample mean= 74.59, population mean= 81.29, population standard deviation= 13.54, N= 26

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