L Co wants to be able to predict their overhead costs with more accuracy. The company accountant has analysed costs for the past six months:
Note: perform all calculations to the nearest $
Production Overhead costs
level (units) ($)
January 10 3,352
February 10.5 3,479
March 12 3,860
April 9 3,098
May 9.5 3,225
June 10.25 3,416
Further analysis has revealed:
Σx = 61.25 Σy = 20,430 Σxy = 209;903 Σx2 = 630.56
【简答题】
Use regression analysis to identify the variable cost per unit.