udio pro- PROBLEM 4-4. Regression Analysis (see Appendix) [LO 1 and Appendix] Lancer duces a high-end DVD player that sells for $1,300. Total operating expenses for the past 12 months are as follows: August September October November December January February March April May June July REQUIRED Units Produced and Sold 165 130 150 145 155 170 140 150 145 150 140 135 Cost $140,345 116,990 130,650 127,670 133,790 143,910 123,520 130,950 127,385 129,865 122,720 120,255 a. Use regression analysis to estimate fixed and variable costs. Round to two decimal places. b. Compare your estimates to those obtained using account analysis (Problem 4-2) and the high- low method (Problem 4-3). Which method provides the best estimates of fixed and variable costs? (Round all answers to the nearest dollar.)

PROBLEM 4-4. Regression Analysis (see Appendix) [LO 1 and Appendix] Lancer Audio produces a high-end DVD player that sells for $1,300. Total operating expenses for the past 12 months are as follows: REQUIRED a. Use regression analysis to estimate fixed and variable costs. Round to two decimal places. b. Compare your estimates to those obtained using account analysis (Problem 4-2) and the highlow method (Problem 4-3). Which method provides the best estimates of fixed and variable costs? (Round all answers to the nearest dollar.)