Mathematics, 17.12.2021 01:50, isidrocastanonox22wl

26. Students who take a statistics course are given a pre-test on the concepts and skills for the first chapter of a statistics course. Then they are given a post-test once the professor has concluded lecturing on the material Pre-test and post-test
scores for 4 students in an elementary statistics class are given below. Can it be concluded that the test scores have
improved? The standard deviation is 6.02. Use a = .05.
Pre-test
65 70 75 84
Post-test
80 82 85 85
Difference 15 | 12 101
a Hypotheses:
b. Test Statistic.

Answers: 2

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26. Students who take a statistics course are given a pre-test on the concepts and skills for the fi...