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Construct a 90 confidence interval for sigmatcsigmaec where

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Question: Let X denote the number of days with snowfall of at least 1 inch in a winter. During the past 121 winters, Twin Cities, MN has observed a mean of X‾Tc = 14.4 days and a sample standard deviation of sTc = 5.27 days; during the past 61 winters, Eau Claire, WI has observed a mean of  X‾Ec = 14.9 days and a sample standard deviation of sEc = 5.20 days. Assume that the data from Twin Cities and Eau Claire are independent. Construct a 90% confidence interval for σTc/σEc, where σTc and /σEc How are the population standard deviations for Twin Cities and Eau elaire, respectively.

Reference no: EM13582690

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