7.34 Executives learn Spanish.
A company contracts with a language institute to provide instruction in Spanish for its executives who will be posted overseas. The following table gives the pretest and posttest scores on the Modern Language Association’s listening test in Spanish for 20 executives.15
spnish
Subject | Pretest | Posttest | Subject | Pretest | Posttest |
---|---|---|---|---|---|
1 | 30 | 29 | 11 | 30 | 32 |
2 | 28 | 30 | 12 | 29 | 28 |
3 | 31 | 32 | 13 | 31 | 34 |
4 | 26 | 30 | 14 | 29 | 32 |
5 | 20 | 16 | 15 | 34 | 32 |
6 | 30 | 25 | 16 | 20 | 27 |
7 | 34 | 31 | 17 | 26 | 28 |
8 | 15 | 18 | 18 | 25 | 29 |
9 | 28 | 33 | 19 | 31 | 32 |
10 | 20 | 25 | 20 | 29 | 32 |