Q2 A study was conducted to test the effect of melatonin on female dementia patients. A random sample of 10 patients was given a dose of 2.5 mg of melatonin daily, while a control group of 10 patients was given a placebo.  The data below are the subjective well-being scores for each of the patients after two months on the assigned treatment.  Higher scores indicate greater well-being. Is there a difference in mean well-being score between the two treatments?  Assume Equal Variances. Run the test at a 5% level of significance.
 1 ) the appropriate null and alternative hypotheses ( 2) the appropriate test ); 3) the decision rule ; 4) the calculation of the test statistic, 5) your conclusion including a comparison to alpha or the critical value, What do the results mean?

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