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Nancy,IncHas Three Stores Located in Three Different Areas

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Nancy,Inc.has three stores located in three different areas.Random samples of the sales of the three stores (In $1,000)are shown below.
Nancy,Inc.has three stores located in three different areas.Random samples of the sales of the three stores (In $1,000)are shown below. a.Compute the overall mean. b.At 95% confidence,test to see if there is a significant difference in the average sales of the three stores.
a.Compute the overall mean.
b.At 95% confidence,test to see if there is a significant difference in the average sales of the three stores.

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a.39
b. blured image F = 40.5;p-...

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