2. [-/5.31 Points] DETAILS BBUNDERSTAT12 9.1.014.S. MY NOTES ASK YOUR TEACHER Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. 40 15 39 35 30 27 19 In USE SALT (a) Make a scatter diagram of the data and visualize the line you think best fits the data. 40 40 35 35 as percentage) as percentage) y (average cost 30 y (average cost 30 25 25 20 LO 20 30 40 50 60 70 10 20 30 40 50 60 70 x (average number x (average number O of employees) of employees) 40 40 35 20 35 percentage) as percentage y (average cost 30 30 y (average 25 25 20 20 10 20 30 50 70 10 20 30 40 50 60 70 x (average number x (average number O of employees) DO of employees) (b) Would you say the correlation is low, moderate, or strong? positive or negative? O low and negative O strong and positive O moderate and positive O strong and negative moderate and negative O low and positive (c) Use a calculator to verify that Ex = 135, Ex? = 6845, Ey = 151, Ey? = 4815, and Exy = 3217. Computer. (Round your answer to four decimal places.) r= As x increases, does the value of r imply that y should tend to increase or decrease? Explain. O Given our value of r, y should tend to increase as x increases. O Given our value of r, y should tend to remain constant as x increases. O Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. O Given our value of r, y should tend to decrease as x increases