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Create side-by-side box plots of total cost for the four


Find a 95% confidence interval for the mean total cost of all customer orders. Then do this separately for each of the four regions.

Create side-by-side box plots of total cost for the four regions.

Does the positive skew ness in these box plots invalidate the confidence interval procedure used?

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Finance Basics: Create side-by-side box plots of total cost for the four
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