Answer to Question #18968 in Statistics and Probability for ADANE HAILU

Question

The paired t-test

The attitudes toward obtaining an advanced college degree of fifteen undergraduate minority students were measured before and after they participated in a federally funded program designed to increase their awareness of the benefits of a higher degree. The higher the score, the more positive is the subject's attitude. Did attending the program significantly change their attitudes?
Before
11
8
10
9
6
13
11
9
12
11
12
6
7
12
6
After
17
14
9
18
6
16
12
7
15
16
20
14
7
20
12