NO.

a

b_j (j = 1, 2, 3, 4)

The regression equations

R²

1

665.44

41.45、−0.16、2.59、-23.28

Y1 = 665.44 + 41.45 × 1 − 0.16 × 2 + 2.59 × 3 − 23.28 × 4

0.9755

2

39.01

0.05、0.0004、-0.0014、0.84

Y2 = 39.01 + 0.05 × 1 + 0.0004 × 2 − 0.0014 × 3 + 0.84 × 4

0.9379

3

36.25

0.36、0.0008、0.0002、0.29

Y3 = 36.25 + 0.36 × 1 + 0.0008 × 2 + 0.0002 × 3 + 0.29 × 4

0.9709

4

44.61

10.43、0.23、0.21、6.97

Y3 = 44.61 + 10.43 × 1 + 0.23 × 2 + 0.21 × 3 + 6.97 × 4

0.9972