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A sample of16 observations is selected from a normal population. The sample standard deviation is 21.50, and the sample mean is 33. 3. Determine the
A sample of16 observations is selected from a normal population. The sample standard deviation is 21.50, and the sample mean is 33. 3. Determine the standard error of the mean. (Round the final answer to 4 decimal places.) The standard error of the mean is |:|. b. Determine the 80% confidence interval for the population mean; (Round the final answers to 2 decimal places.) The 80% confidence interval for the population mean is between |:| and |:| c. If you wanted a wider interval, would you increase or decrease the confidence level? (Click to select) v
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