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Please answer question A, B, and C Determine the margin of error for a confidence interval to estimate the population mean with n = 18

Please answer question A, B, and C

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Determine the margin of error for a confidence interval to estimate the population mean with n = 18 and s = 15.3 for the confidence levels below. a) 80% b) 90% c) 99% a) The margin of error for an 80% confidence interval is (Round to two decimal places as needed.)

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