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Construct a 98% confidence interval to estimate the population mean when x=69 and s-14.2 for the sample sizes below. a) n 15 b) n 38 c)n-57 a) The 98% confidence interval for the population mean when n = 15 is from a lower limit of 5938 to an upper limit of 7862 Round to two decimal places as needed.) b) The 98% confidence interval for the population mean when n= 38 is from a lower limit of 63.4 to an upper limit of 74.6 . Round to two decimal places as needed.) c) The 98% confidence interval for the population mean when n = 57 is from a lower limit of | | to an upper limit of Round to two decimal places as needed.)

Answer 1