Question 8 of 20 : Select the best answer for the question. 8. Consider the data points shown Find the equation for the least-squares regression line that fits this data. 0 A.i=-336+.361x O B.7=256+_8551r O c.7=-354+_211x O D.y=-535+_321x Question 6 of 20 : Select the best answer for the question. 6. Independent random samples of 800 observations each are selected from two binomial populations. The sample from population 1 produced 320 successes and the sample from population 2 produced 400 successes. Test Ho : (p1 p2) = 0 against Ha: (p1 p2) at 0 using a = .01. O A. z = 3.96 O B. z = 4.02 O C. 2 = 4.68 O D.z=4.16