Question: 3- A 95% confidence interval for a population mean was reported to be 360 to 388. If o = 24, what sample size was used


3- A 95% confidence interval for a population mean was reported to be 360 to 388. If o = 24, what sample size was used in this study? How large a sample should be selected to provide a 95% confidence interval with a margin of error of 15? Assume that the population standard deviation is 50
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