Credit scores | English homework help
The table shows the credit scores for 12 randomly selected adults who are considered high-risk borrowers before and two years after they attend a personal finance seminar. At a = 0.01, is there enough evidence to support the claim that the seminar helps adults increase their credit scores? Assume the populations are normally distributed.
|
Adult |
1 |
2 |
3 |
4 |
5 |
6 |
|
|
Credit score (before seminar) |
608 |
620 |
610 |
650 |
640 |
680 |
|
|
Credit score (after seminar) |
646 |
692 |
715 |
669 |
725 |
786 |
|
|
|
|
||||||
|
Adult |
7 |
8 |
9 |
10 |
11 |
12 |
|
|
Credit score (before seminar) |
655 |
602 |
644 |
656 |
632 |
664 |
|
|
Credit score (after seminar) |
700 |
650 |
660 |
650 |
680 |
702 |
|
