Tests the hypotheses:

H_{0} |
There is no difference between the means of the samples |
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H_{1} (two-tailed) |
The mean of sample A is different than the mean of sample B |

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

Sample A: | |

Sample B: | |

Significance level α: | |

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