In: Statistics and Probability
A group of twenty students and we want to investigate the effect of the use of some didactic resource, for example a video on YouTube, on their ability to solve certain types of mathematical problems. We take an initial test, we ask them to watch the video and when they finish we take another test. We now have two observations from each student. We calculate the difference between them. Please use the statistical methods learned in this semester (variance analysis/regression analysis/chi-square test) to calculate and write a short report.
Name |
Before |
After |
Difference |
Luis |
18 |
22 |
4 |
Javier |
21 |
25 |
4 |
Pedro |
16 |
17 |
1 |
Soledad |
22 |
24 |
2 |
Manuel |
19 |
16 |
-3 |
Cecilia |
24 |
29 |
5 |
Cristina |
17 |
20 |
3 |
Angel |
21 |
23 |
2 |
Manuela |
23 |
19 |
-4 |
Jose |
18 |
20 |
2 |
Juan |
14 |
15 |
1 |
Antonio |
16 |
15 |
-1 |
Carmen |
16 |
18 |
2 |
Carlos |
19 |
26 |
7 |
Francisco |
18 |
18 |
0 |
Miguel |
20 |
24 |
4 |
Laura |
12 |
18 |
6 |
Lucia |
22 |
25 |
3 |
Paula |
15 |
19 |
4 |
Dolores |
17 |
16 |
-1 |