help please

Check Problem 3-29 (Algo) Mark Price, the new productions manager for Speakers and Company, needs to find out which variable most affects the demand for their line of stereo speakers. He is uncertain whether the unit price of the product or the effects of increased marketing are the main drivers in sales and wants to use regression analysis to figure out which factor drives more demand for its particular market. Pertinent information was collected by an extensive marketing project that tasted over the past 12 years and was reduced to the data that follow. YEAR 2 2 3 4 5 UNIT SALES (THOUSANDS) PRICE S/UNIT 374 279 674 222 874 220 1,293 215 1,239 222 1,182 196 874 226 1,108 205 972 228 1,231 220 899 23% 307 250 ADVERTISING (5000) 618 826 1,188 1,401 1,200 1,293 899 1.100 7 690 9 10 11 12 899 698 698 a. Perform a regression analysis based on these data using Excel (Negative values should be indicated by a minus sign. Round your answers to 4 decimal places.) bar Prion ndvertising Predict average yearly speaker sales for Speakers and Company based on the regression results of the price was $274 per unit and the amount spent on advertising in thousands) was $875. (Enter your answer in thousands. Round your intermediate calculations