Archives of the Journal of Internal Medicine claimed that garlic has no effect on blood cholesterol, in other words than the mean drop in cholesterol after treating with raw garlic is 0.0 mg/dL. A clinical trial involving 64 subjects was conducted to test the effectiveness of garlic for lowering cholesterol. The sample mean for the drop in cholesterol was 5.0 mg/dL with a standard deviation of 24.0 mg/dL.

Complete the following steps using =0.02 level of significance to test whether the mean drop in cholesterol is greater than 0.0 mg/dL when treating with raw garlic.