[Step-by-Step] Refer to the data in the below table that lists SAT scores before and after a random sample of 10 students took a preparatory course. At
Question: Refer to the data in the below table that lists SAT scores before and after a random sample of 10 students took a preparatory course. At the 0.05 significance level, test the claim that the preparatory course is effective in raising SAT scores.
Student A B C D E F G H I J
SAT score BEFORE course 700 840 830 860 840 690 830 1180 930 1070
SAT score AFTER course 720 840 820 900 870 700 800 1200 950 1080
- What is the null and alternative hypotheses for this study? To receive full credit you must write these claims both symbolically AND in English.
- For a = 0.05, what is the critical t-value?
- What is the computed test statistic?
- Based on this study, do we conclude that the preparatory course is effective in raising SAT scores?
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