A researcher wishes to determine whether people with high blood pressure can lower their blood pressure by performing yoga exercises. A treatment group and a control group are selected. The sample statistics are given below. Construct a 90% confidence interval for the difference between the two population means, µ1 - µ2. Would you recommend using yoga exercises? Explain your reasoning. Treatment Group Control Group n1 = 100 n2 = 100 x1 = 178 x2 = 193 s1 = 35 s2 = 37

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