A test preparation company claims that more than 60% of the students who take their GRE prep course improve their scores

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A Test Preparation Company Claims That More Than 60 Of The Students Who Take Their Gre Prep Course Improve Their Scores 1 (186.3 KiB) Viewed 23 times

A test preparation company claims that more than 60% of the students who take their GRE prep course improve their scores by at least 10 points. a) Is the alternative to the null hypothesis more naturally one-sided or two-sided? Explain. b) A test run with randomly selected participants gives a P-value of 0.023. What do you conclude? c) What would you have concluded if the P-value had been 0.962? a) The alternative hypothesis is more naturally because the company is interested in knowing if the course leads to 60% of students by more than 10 points. evidence to conclude that the course improves scores for b) If the P-value is 0.023, then there 60% of students by more than 10 points. evidence to conclude that the course improves scores for c) If the P-value is 0.962, then there