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 21 17 8 11 20 23 Demand 46 28 34 38 20 24 41 33 a. Calculate the slope and y-intercept for the linear regression equation for these data. (Round to two decimal places as needed.) b. Predict the demand for hot dogs on a day with a temperature of 19 C The predicted demand for hot dogs on a day with a temperature of 19 C is (Round to the nearest integer as needed.)