An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-training customer survey. To compare the differences, they computed (post-training survey score - pre-training survey score). Seven customers were randomly selected and completed both surveys. The results follow. This analysis is an example of _____________.
A)A one-sample test of means
B)A two-sample test of means
C)A paired t-test
D)A test of proportions

Question

An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-training customer survey. To compare the differences, they computed (post-training survey score - pre-training survey score). Seven customers were randomly selected and completed both surveys. The results follow.  This analysis is an example of _____________.
A)A one-sample test of means 
B)A two-sample test of means 
C)A paired t-test 
D)A test of proportions

Quizplus · Accepted Answer

The analysis involves comparing the scores of the same customers before and after the training program, making it a paired t-test. Option A and B involve comparing means between two different groups, and Option D involves testing proportions, none of which applies to this scenario.

An Investigation of the Effectiveness of a Training Program to Improve