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Construct a 98​% confidence interval to estimate the population mean when x overbar125 and s​ =...

Construct a 98​% confidence interval to estimate the population mean when x overbar125 and s​ = 27 for the sample sizes below. ​a) n=20       ​b) n=50       ​c) n=80 ​a) The 98​% confidence interval for the population mean when nequals20 is from a lower limit of _ to an upper limit of _.

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