reg tax

F(2, 27) = 1983.74 R-squared = 0.9932

gdp pfe

Prob > F = 0.0000 Adj R-squared = 0.9927

tax

Coef.

Std. Err.

t

P > t

95% CI下限

95% CI上限

gdp

0.1372772

0.044313

3.10

0.005

0.0463543

0.2282

pfe

0.160971

0.1754042

0.92

0.367

−0.1989287

0.5208707

_cons

−1413.473

2023.158

−0.70

0.491

−5564.651

2737.705