Find population mean for all students at college

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A random sample of 53 students were asked for the number of semester hours they are taking this semester. The sample standard deviation was found to be 4.7 semester hours. How many more students should be included in the sample to be 99% sure the sample mean is with 1 semester hour of the population mean for all students at this college? There should be more included in the sample to meet the requirement.

Reference no: EM13126693

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