researcher wishes to determine whether people with high blood pressure can reduce their blood pressure, measured in mm Hg, by following a particular diet. Use a significance level of 0.01 to test the claim that the treatment group is from a population with a smaller mean than the control group. Use the traditional method of hypothesis testing. n1 = 101 n2 = 105 x1= 120.5 x2= 149.3 s1 = 17.4 s2 = 30.2 need graph