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:
The calculated value of t. is -2.542. Was the training effective in improving customer relationships
When tested at a 0.05 level of signiﬁcance?
A) Reject the null hypothesis and conclude that the training was effective
B) Reject the null hypothesis and conclude that the training was ineffective
C) Fail to reject the null hypothesis and conclude that mean survey scores are the same
D) Fail to reject the null hypothesis and conclude that the mean survey scores are not equal.

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: 
The calculated value of t. is -2.542. Was the training effective in improving customer relationships
When tested at a 0.05 level of signiﬁcance?
A) Reject the null hypothesis and conclude that the training was effective 
B) Reject the null hypothesis and conclude that the training was ineffective 
C) Fail to reject the null hypothesis and conclude that mean survey scores are the same 
D) Fail to reject the null hypothesis and conclude that the mean survey scores are not equal.

Quizplus · Accepted Answer

Reject the null hypothesis and conclude that the training was effective

An Investigation of the Effectiveness of a Training Program to Improve