Thirty professors took an intensive teacher-training class before the Fall ’14 semester began and they were...

Thirty professors took an intensive teacher-training class before the Fall ’14 semester began and they were paired with professors teaching the same courses who did not take the intensive training class. Course evaluations were compared at the end of the semester, and the mean advantage for those who took the course compared to their matched counterparts was 1 point on ratings of the question “The instructor is an excellent teacher.” The standard deviation of this difference was 2.5. Do teacher training classes improve teaching evaluations? Use a 1% significance level. Show your work for all 4 steps in hypothesis testing. Be sure to include diagrams and to determine and interpret the p-value for your test-statistic. State in words the conclusion you reach from the hypothesis test suggests about the answer to the italicized question.

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orchestra answered 1 year ago

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