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 time with and without slicer.docx A ... The test statistic T+ equals A 20.5 B 19.5 C 23 D 21 Preparation Times Person With Slicer Without Slicer 20 22 12 18 20 18 14 22 19 19 21 18 12 18 25 26 20