Foot temperatures:Foot ulcers are a common problem for people with diabetes. Higher skin temperatures on the foot indicate an increased risk of ulcers. In a study performed at the Colorado School of Mines, skin temperatures on both feet were measured, in degrees Fahrenheit, for

8

diabetic patients. The results are presented in the following table. Use a TI-84 calculator to answer the following.

Left Foot	Right Foot
80	80
75	80
85	85
88	86
89	87
78	78
87	82
88	89

Part 1 of 4

Compute the least-squares regression line for predicting the right foot temperature from the left foot temperature. Round the slope and y-interceptvalues to four decimal places.

=y