Manure added farms | Non-manure farms | |

Mean | 212.8 | 107.8 |

Variance | 77.7 | 97.2 |

Observations | 5 | 5 |

Hypothesized Mean Difference | 0 | |

df | 8 | |

t Stat | 17.75331245 | |

P (T ≤ t) one-tail | 5.18508E−08 | |

t Critical one-tail | 1.859548038 | |

P (T ≤ t) two-tail | 1.03702E−07 | |

t Critical two-tail | 2.306004135 |