A high school is examining the effectiveness of a new SAT prep program. The following scores...
A high school is examining the effectiveness of a new SAT prep program. The following scores are from practice tests taken by students before and after they took the prep program:
|
SAT Score (before) |
SAT Score (after) |
|
1000 |
1020 |
|
1250 |
1260 |
|
1300 |
1330 |
|
1070 |
1050 |
|
1100 |
1130 |
|
1050 |
1070 |
|
1100 |
1080 |
|
1350 |
1400 |
|
1250 |
1290 |
|
980 |
1020 |
Test the null hypothesis that the pre-program and post-program scores are equal (alpha=0.05).
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A high school is examining the effectiveness of a new SAT prep
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A high school principle currently encourages students to enroll in a specific SAT prep program that has a reputation of improving score by 50 points on average. A new SAT prep program has been released and claims to be better than their current program. The principle is thinking of advertising this new program to students if there is enough evidence at the 5% level that their claim is true. The principle tests the following hypotheses: Ho = 50 points HA...
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