Question: Given the data presented in the spreadsheet for question 14:

a. State the regression equation

b. At the 0.05 level of significance, determine whether each independent variable makes a significant contribution to the regression model.

c. Predict the quantity sold (rounded to the nearest whole number) if you charged $12.00 and spent $4.00 on advertising.

d. Is demand for this product price elastic at the level calculated in part c?