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Find ci for the difference between the given means

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Reference no: EM131642260

Question: Find a 95% confidence interval for the difference between the following means: the mean total order cost for West customers and the mean total order cost of Northeast customers. Do the same for the other combinations: West versus Midwest, West versus South, Northeast versus South, Northeast versus Midwest, and South versus Midwest.

Reference no: EM131642260

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