1. [15/25 Points] DETAILS MY NOTES Given are five observations for two variables, x and y. x; 1 2 3 4 5 yi 4 64 12 14 (a) Develop a scatter diagram for these data. y 18- 15 12 9 6 3 ASWSBE15 14.E.001. y 18. y y 18 18- 15 15 12 9 6 3 15 12 9 6 3- 12 9 6 3 x 0 1 2 3 4 5 6 x x 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 (b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? O There appears to be no noticeable relationship between x and y. O There appears to be a negative linear relationship between x and y. There appears to be a positive linear relationship between x and y. (c) Try to approximate the relationship between x and y by drawing a straight line through the data. y 18 15- 12 9 6 3 . 1 2 3 4 5 6 y 18- 15 12 9. 6 3 1 2 3 4 5 6 (d) Develop the estimated regression equation by computing the values of b and b using b = = (e) Use the estimated regression equation to predict the value of y when x = 2. y 18 15 12 9 6 3 (x-x)(y, - y) (x-x) and b = y - bx. 1 2 3 4 5 6 18 15 12 9 6 3 y x 1 2 3 4 5 6 PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER