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Mathematics, 29.10.2019 13:31, Destinyb3722
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, are we convinced that retaking the test improves scores? what is the p-value for a test of h0: μ = μ0 versus ha: μ ≠ μ0? c. less than 0.01 a. more than 0.75 b. more than 0.10
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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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