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A company advertises that food preparation time can be significantly reduced with the Handy Dandy Slicer. A sample of 12 individuals prepared the ingredients for

A company advertises that food preparation time can be significantly reduced with the Handy Dandy Slicer. A sample of 12 individuals prepared the ingredients for a meal with and without the slicer. You are given the preparation times below.

Preparation Times Person With Slicer Without Slicer 20 22 12 18 20 18 14 22 19 19 20 21 19 18 15 12 22 18 19 25 11 21 26 12 23 20

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