Null Hypothesis | Test | Sig. | Decision | |

1 | The distribution of U6U6 mm is the same across catagories of Group | Independent Samples Mann-Whitney U Test | 0.036 | Reject the null hypothesis |

2 | The distribution of U5U5 mm is the same across catagories of Group | Independent Samples Mann-Whitney U Test | 0.001 | Reject the null hypothesis |

3 | The distribution of U4U4 mm is the same across catagories of Group | Independent Samples Mann-Whitney U Test | 0.001 | Reject the null hypothesis |

4 | The distribution of U3U3 mm is the same across catagories of Group | Independent Samples Mann-Whitney U Test | 0.155 | Retain the null hypothesis |