How many more students must be included in sample to be 99

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A random sample of 53 students were asked for the number of semester hours they are taking this semester at Surry Community College. The sample standard deviation was found to be s = 4.7 semester hours. How many more students should be included in the sample to be 99% sure the sample mean is within one semester hour of the population mean for all students at this college?

Reference no: EM13470889

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