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