Question: Refer to Example 10, Arthroscopic Surgery. Here we show MINITAB output comparing mean knee pain scores for the placebo (Group 1) to debridement arthroscopic surgery

Refer to Example 10, “Arthroscopic Surgery.” Here we show MINITAB output comparing mean knee pain scores for the placebo (Group 1) to debridement arthroscopic surgery (Group 2).
a. State and interpret the result of the confidence interval.
b. State all steps and interpret the result of the significance test.
c. Based on the confidence interval and test, would you conclude that the arthroscopic surgery works better than placebo? Explain.

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a The confidence interval is 83 87 We can be 95 confident that the population mean difference is bet... View full answer

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