[See Steps] A sample of size n = 20 is selected from a normal population to construct a 95% confidence interval estimate for a population mean. The interval
Question: A sample of size n = 20 is selected from a normal population to construct a 95% confidence interval estimate for a population mean. The interval was computed to be (9.50 to 13.10). Determine the sample standard deviation.
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(See Steps) A random sample of 51 observations was selected from
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