Manure added farms

Non manure farm

Mean

0.82

0.32

Variance

0.007

0.007

Observations

5

5

Hypothesized Mean Difference

0

df

8

t Stat

9.449111825

P (T ≤ t) one-tail

6.46847E−06

t Critical one-tail

1.859548038

P (T ≤ t) two-tail

1.29369E−05

t Critical two-tail

2.306004135