Does The Princeton Review SAT prep course improve SAT scores? Five people were SRS and asked to participate in the experiment. Their SAT scores were recorded after and before the Princeton Review prep course. Person 1 2 3 4 5 After Princeton Review 920 1020 850 840 900 Before Princeton Review 900 1000 800 850 900 Is there sufficient evidence at the 5% significance level to indicate that The Princeton Review improves people’s SAT scores? What is your statistical conclusion? a) Do not reject Ho b) Reject Ha c) Reject Ho d) Do not accept Ha
Added by William N.
Step 1
Here are the steps: Show more…
Show all steps
Close
Your feedback will help us improve your experience
Sri K and 95 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
An SAT prep course claims to improve the test scores of students. The table below shows the scores for seven students the first time they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve their verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores? Let d = (verbal SAT scores prior to taking the prep course) - (verbal SAT scores after taking the prep course). Use a significance level of α = 0.1 for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course. Student 1 2 3 4 5 6 7 Score on first SAT: 570 500 500 380 430 360 360 Score on second SAT: 620 540 520 440 470 380 410
Sri K.
An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores? Let d=(verbal SAT scores prior to taking the prep course)−(verbal SAT scores after taking the prep course)d=(verbal SAT scores prior to taking the prep course)−(verbal SAT scores after taking the prep course). Use a significance level of α=0.05α=0.05 for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course. Student 1 2 3 4 5 6 7 Score on first SAT 380 390 590 490 540 530 510 Score on second SAT 410 490 610 610 580 600 550 Compute the value of the test statistic. Round your answer to three decimal places Determine the decision rule for rejecting the null hypothesis H0H0. Round the numerical portion of your answer to three decimal places Make the decision for the hypothesis test..
Lien L.
An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores? Let d=(verbal SAT scores prior to taking the prep course)−(verbal SAT scores after taking the prep course) . Use a significance level of α=0.01 for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course. Determine the decision rule for rejecting the null hypothesis H0 . Round the numerical portion of your answer to three decimal places.
David N.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD