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If n = 20, the sample mean = 150, SD = 15, SEM = 2.354, what is the confidence interval (using 95% confidence level). What

If n = 20, the sample mean = 150, SD = 15, SEM = 2.354, what is the confidence interval (using 95% confidence level). What percent confidence do you have that the population mean is between what two values?

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