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 oft. 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 oft. 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

The Answer of 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 oft. 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.

An Investigation of the Effectiveness of a Training Program to Improve