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A drug company is investigating a new pain relief medicine for migraine. To test the effectiveness...

A drug company is investigating a new pain relief medicine for migraine. To test the effectiveness of the new drug, 10 volunteers were selected and randomly assigned to receive either the new medication or a placebo. The subjects were instructed to take the drug or placebo during their next migraine headache episode and to report their pain on a scale of 1 to 10 (10 being most pain). The following table summarize the results:

Placebo Group

Treatment Group

9

4

8

5

7

3

7

7

6

5

  1. Write out your null and alternative hypotheses.
  2. Carry out the appropriate statistical test to determine if the new drug is effective (Two sided).
Math   Statistics-And-Probability   
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Answer #1

Here to test the given hypothesis that the new drug is effective , t-test for difference of means is used. Here is attached the detailed solution:

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