Answer Happy

An article described a study comparing the amounts of econozole nitrate absorbed into human skin for several formulations of antifungal ointment. Both a brand name and generic drug were applied to the arms of 14 subjects, and the amounts absorbed, in µg/cm2, were measured. Following are the results. Brand Name Generic Difference 2.23 1.42 0.81 1.68 1.95 -0.27 2.05 2.58 -0.53 2.81 2.25 0.56 1.14 1.21 -0.07 3.20 2.83 0.37 2.33 2.76 -0.43 4.06 3.65 0.41 2.92 2.89 0.03 2.92 2.85 0.07 2.83 2.44 0.39 3.45 3.11 0.34 2.72 2.64 0.08 3.74 2.82 0.92 Can you conclude that the mean amount absorbed differs between the brand name and the generic drug? Find the P-value and state a conclusion. Since 0.50<P < 0.80 we cannot conclude that the mean amount absorbed differs between the brand name and the generic drug.