Question

The door-to-door vacuum salesman then suspects that he can predict the customer’s satisfaction with his product using these cleanliness ratings. The salesman returns to the nine clients’ homes to ask how satisfied they are with the vacuum (on a scale of 1-100, 100 being extremely satisfied). The raw data has been summarized below. X is the rating of cleanliness and Y is the rating of satisfaction.

r =0.5 s_y=200 s_x= 18

x bar = 3.3

y bar= 20

What is the slope?

Interpret your slope of the regression equation.

What is the Y-intercept?

What is your regression equation?

For a cleanliness score of 12, how satisfied would you predict the client to be?

Answer 1

Given that the salesman returns to the nine clients homes to ask how satisfied