Statistics Homework Help

Posted on 2014-02-25 11:52:00 in Statistics by SAVISHAM

In a study designed to test the effectiveness of hypnosis in reducing pain a research team looked at responses from 8 randomly selected patients before and after hypnosis. The raw data are found in Table 1. Let ? = 0.1





Table 1: Perceived pain levels pre and post hypnosis for 8 subjects

Pre 8.2 11.5 9.8 7.3 10.1 7.0 10.6 10.4

Post 9.2 6.6 10.6 8.4 8.7 5.2 9.1 8.0

Diff 1.0 -4.9 0.8 1.1 -1.4 -1.8 -1.5 -2.4



Since the investigators believe that hypnosis will reduce perceived pain levels you should compute the differences as Post - Pre and expect negative numbers if the treatment is effective



D) The point estimate for the true average effect that hypnosis has on pain perception is a:

Note: round your answer for the first part of this question to 3 decimal precision



E) The point estimate for the true standard deviation of the effect that hypnosis has on pain perception is:

Note: round your answer to 3 decimal precision



G) The test statistic for this data set is:

Note: Round your answer to the nearest hundredth.

---

Answer Comment

No Answers Posted Yet.