A multiple regression analysis produced the following tables:

Predictor

Coefficients

Standard Error

tStatistic

p-value

Intercept

752.0833

336.3158

2.236241

0.042132

x1

11.87375

5.32047

2.031711

0.082493

x2

1.908183

0.662742

2.879226

0.01213

Source

df

SS

MS

F

p-value

Regression

2

203693.3

101846.7

6.745406

0.010884

Residual

12

181184.1

15098.67

Total

14

384877.4