Exhibit 19-4
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 19-4. The null hypothesis should
A)be rejected
B)not be rejected
C)be revised
D)None of these alternatives is correct.

Question

Exhibit 19-4
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 19-4. The null hypothesis should
A)be rejected 
B)not be rejected 
C)be revised 
D)None of these alternatives is correct.

Quizplus · Accepted Answer

The null hypothesis should state that there is no significant difference in preparation times between using the slicer and not using it. Therefore, the null hypothesis should not be rejected unless there is sufficient evidence to support the alternative hypothesis that there is a significant difference. Without further information, we cannot revise the null hypothesis or choose option D.

Exhibit 19-4 A Company Advertises That Food Preparation Time Can Be Significantly