Manure added farms

Non-manure farms

Mean

0.54

0.24

Variance

0.003

0.003

Observations

5

5

Pooled Variance

0.003

Hypothesized Mean Difference

0

df

8

t Stat

8.660254038

P (T ≤ t) one-tail

1.22842E−05

t Critical one-tail

1.859548038

P (T ≤ t) two-tail

2.45684E−05

t Critical two-tail

2.306004135