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. The hypothesis is to be tested at the 5% level of significance. The decision rule is not to reject the null hypothesis if

Question

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. The hypothesis is to be tested at the 5% level of significance. The decision rule is not to reject the null hypothesis if
A)-1.96 < z < 1.96 
B)-1.645 < z < 1.645 
C)z > 1.96 or z < -1.96 
D)the number of "+" signs is greater than or equal to 2 but less than or equal to 8

Quizplus · Accepted Answer

The decision rule for a two-tailed test at the 5% significance level is to not reject the null hypothesis if the z-score falls between -1.96 and 1.96.

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