Stats Solutions

Solution: Do students tend to improve their SAT Mathematics (SAT-M) score the second time they take the test? A random sample of four students who took

Question: (8 points) Do students tend to improve their SAT Mathematics (SAT-M) score the second time they take the test? A random sample of four students who took the test twice received the following scores. Assume that the change in SAT-M score (second score – first score) for the population of all students taking the test twice is normally distributed. What is a 90% confidence interval for the mean change in SAT-M score?

Student 1 2 3 4
First score 450 520 720 600
Second score 440 600 720 630

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Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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