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MNM Inc, has their stores located at three different locations. Random samples of the daily sales of the three stores (in $1,00) are shown below.

Stores 1 store 2 store 3
9 10 6
8 11 7
7 10 8
8 13 11
at the 95% confidence level is there significant difference in the average sales of the stores?

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The solution discusses the random samples of the daily sales of the three stores.

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