Participant's top driving speeds were first measured for a day. Then each participant took part in a safe driving course. After completing the course, their top driving speeds were again measured for a day. The following are the scores for each of the 5 participants presented as (before, after):

(65, 58), (64, 59), (60, 56), (70, 66), (68, 60)

Which of the following is closest to the t test statistic that you obtained for this scenario?

A.) + .5

B.) +1.0

C.) +2.0

D.) +3.0

E.) +5.0

Using the .05 (5%) level of significance, address the following question: Did the course make some sort of difference in driving speed?

A) Reject Null

C) Reject Research Hypothesis

B) Fail to Reject Null

D) Fail to Reject Research Hypothesis