An Investigation of the Effectiveness of a Training Program to Improve

Multiple Choice

An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-training customer survey. 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.