Mathematics, 20.06.2020 17:57 cutegirl0987
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. Student 1 2 3 4 First Score 450 520 720 600 Second Score 440 600 720 630 Assuming that the change in SAT-M score (second score – first score) for the population of all students taking the test twice is Normally distributed with mean μ, a 95% confidence interval of μ is (hint: use Excel)
Answers: 1
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Do students tend to improve their SAT mathematics (SAT-M) score the second time they take the test?...
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