Variable

Coefficient

Std. Error

t-statistics

prob.

C

1.768721

0.254231

6.957148

0.0000

TKNOW

0.460597

0.051900

8.874789

0.0000

TPEN

0.115214

0.063016

1.828318

0.0686

R-squared

0.316421

Adjusted R-squared

0.311432

F-statistic

63.41589

Prob (F-statistic)

0.00000

Durbin-Watson stat

1.79777