Question: Calculate the two sided 90% confidence interval for the population mean (mu) given that a sample of size n=21 yields a sample mean of 9.32

Calculate the two sided 90% confidence interval for the population mean

Calculate the two sided 90% confidence interval for the population mean (mu) given that a sample of size n=21 yields a sample mean of 9.32 and a sample standard deviation of 2.62 . Your answer: 7.68

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