y^=b0+b1x+b2x2 where y= traffic flow in vehicles per hour x= vehicle speed in miles per hour The following data were collected during rush hour for six highways leading out of the city. a. Use the data to compute the coefficients of this estimated regression equation (to 4 decimals). Enter negative value as negative number. (Create the x2 variable first using Data/Transform Data/Square.) b0=b1=b2= b. Using =0.01, test for a significant relationship. F=p-value=(to4decimals)(to4decimals) The relationship significant. c. Estimate the traffc flow in vehides per hour at a speed of 38 miles per hour (to 2 decimals). vehicies per hour