The daily production rates for a sample of factory workers before and after a training program are shown below.
Worker Before After
1 6 9
2 10 12
3 9 10
4 8 11
5 7 9
At 95% confidence, test to see if the training program was effective. That is, did the training program actually increase the production rates? If test statistic is equal to 5.8, what would be the conclusion?
A. Reject the null hypothesis, the production rate hasn't increased.
B. Fail to reject the null hypothesis, the production rate hasn't increased.
C. Reject the null hypothesis, the production rate has increased.
D. Fail to reject the null hypothesis, the production rate has increased.