need help for managerial economics

need help for managerial economics

  • Attachment 1
  • Attachment 2

Solution 1: a) b1 = [(∑x22) (∑x1y) – (∑x1x2) (∑x2y)]/ [(∑x1²) (∑x2²) – (∑x1x2)²] = [(85.3) (­0.68) – (­3.22) (­5.87)]/ [(1.03) (85.3)­ (­3.22) 2] = ­0.9925 b2 =…