Interval

ks.test (p-value)

t.test (p-value)

f.test (p-value)

10 years

0.0138

0.7278

0.9857

20 years

4.814e⁻⁰⁷

0.5555

0.8743

30 years

3.331e⁻¹⁶

0.193

0.6996

40 years

<2.2e⁻¹⁶

0.2965

0.7264

50 years

<2.2e⁻¹⁶

0.2081

0.6054

0 < +100 (dummy)

<2.2e⁻¹⁶

2.312e⁻⁰⁸

<2.2e⁻¹⁶