a. State and interpret the result of the confidence interval b. State all steps and interpret the re
Question:
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
Refer to Example
Compare knee pain score for the placebo (group 1) to debridement arthroscopic surgery (group 2)
SAMPLE
N MEAN ST DEV SE MEAN1 60 51.6 23.7 3.1
2 59 51.4 23.2 3.0
Difference = mu (1) – mu(2)
Estimate for difference: 0.200000
95%CI for difference: (-8.316130, 8.716130)
T- test of difference = 0 (vs not =):
T-value = 0.05 P-value = 0.963 DF 117
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Answer: The downloadable solution consists of 3 pages
Deliverables: Word Document![](/images/msword.png)
Deliverables: Word Document
![](/images/msword.png)