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Construct a 90 confidence interval for the population mean Assume the population has a normal...

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Construct a 90 confidence interval for the population mean Assume the population has a normal distribution A sample of 15 randomly selected math majors has a grade point average of 2 86 with a standard deviation of 0 78 Round to the nearest hundredth OA 2 41 3 42 OB 2 37 3 56 OC 2 51 3 21 OD 2 28 3 66

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