Tests the hypotheses:

H_{0} |
There is no difference between the mean of the sample and the specified mean |
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H_{1} (two-tailed) |
The mean of the sample is different than the specified mean |

H_{1} (one-tailed) |
The mean of the sample is either less than or greater than the specified mean |

Sample: | |

Mean: | |

Significance level α: | |

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