Exhibit 18-3 A Company Advertises That Food Preparation Time Can Be Significantly

Multiple Choice

Exhibit 18-3
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.
-Refer to Exhibit 18-3. To test the null hypothesis, the appropriate probability distribution to use is

A) normal
B) chi-square
C) t distribution
D) binomial