Three different drugs are used in a tria l testing their eff

Three different drugs are used in a tria l testing their effectiveness in relieving migraine headaches. There are 125 subjects assigned to each drug. The results are shown in the table below. Test the hypot hesis of equal effectiveness, computing and interpreting the p-value.

Relief A: 95

Relief B: 87

Relief C: 85

No Relief A: 30

No Relief B: 38

No Relief C: 40

Solution