Time of Placement |
| T-value | P-value |

0 min | With assumption of Homogeneity of variance | 8.845 | <0.05 |

| Without assumption of Homogeneity of variance | 8.200 | <0.05 |

60 min | With assumption of Homogeneity of variance | 8.313 | <0.05 |

| Without assumption of Homogeneity of variance | 7.737 | <0.05 |

120 min | With assumption of Homogeneity of variance | 8.337 | <0.05 |

| Without assumption of Homogeneity of variance | 7.758 | <0.05 |

180 min | With assumption of Homogeneity of variance | 8.072 | <0.05 |

| Without assumption of Homogeneity of variance | 7.512 | <0.05 |