48

Question 48 (2 points) Provide an appropriate response. A medical researcher is interested in determining if there is a relationship between adults over 50 who exercise regularly and low, moderate, and high blood pressure. A random sample of 236 adults over 50 is selected and the results are given below. Calculate the chi-square test statistic x- to test the claim that regular exercise and low, moderate, and high blood pressure are independent. Use a = 0.01. Blood Pressure Low Moderate High Reg. Exercise 35 62 25 No Reg. Exercise 21 65 28