The following table shows the hot dogs bought from a street vendor over the course of eight days ("Demand"). Also shown is the temperature for each day in degrees Celsius. Complete parts a and b below.

Temperature (C) 18 13 25 19 6 14 20 21

Demand 45 29 34 42 17 23 43 34

a. Calculate the slope andy-intercept for the linear regression equation for these data. y=_____+(_____)x (Round to two decimal places asneeded.)

b. Predict the demand for hot dogs on a day with a temperature of 8C.

The predicted demand for hot dogs on a day with a temperature of 8C is _____. (Round to the nearest integer asneeded.)