Manure added farms

Non manure farms

Mean

24.6

0.82

Variance

1.3

0.022

Observations

5

5

Hypothesized Mean Difference

0

df

4

t Stat

46.24674008

P(T ≤ t) one-tail

6.53799E−07

t Critical one-tail

2.131846786

P(T ≤ t) two-tail

1.3076E−06

t Critical two-tail

2.776445105