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 |