Term | Description |
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D_{tot} | Sum of all the defectives |

N_{tot} | Sum of all the sample sizes |

Term | Description |
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Average P | The proportion of items in your process that are defective |

Term | Description |
---|---|

Average P | The proportion of items in your process that are defective |

Process Z is calculated as the value on a standard normal distribution N (0,1), such that the area to the right of the value is the Average P.

Term | Description |
---|---|

Inverse cumulative distribution function (CDF) of a standard normal distribution | |

Average P | The proportion of items in your process that are defective |