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State the null and alternative hypothesis

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A pilot study was conducted to evaluate the effectiveness of pain alleviation in patients with facial shingles. 24 patients were randomly assigned to one of 2 treatment groups; rest vs. acupuncture. After two weeks of treatment, the subjects were then asked to rate their pain on a scale from 1 to 10 with 10 being the most pain they have ever experienced. The data they recorded is shown below:

Rest Acupuncture

5 5

5 6

10 7

9 2

8 9

6 8

9 7

4 4

7 3

8 5

4 9

3 2

-State the null and alternative hypothesis.

-What is the value of t for the analysis?

-Is this value significant and at what level? Why?

-Why is a pooled variance test allowed here while a separate variance t test is not appropriate?

Reference no: EM132495650

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