Xavier | PSDA |
---|---|

34 | 25 |

36 | 26 |

38 | 28 |

41 | 30 |

41 | 30 |

41 | 32 |

41 | 32 |

41 | 32 |

42 | 33 |

43 | 35 |

43 | 35 |

44 | 36 |

44 | 36 |

44 | 36 |

44 | 37 |

44 | 37 |

44 | 38 |

45 | 39 |

45 | 39 |

46 | 39 |

46 | 40 |

47 | 41 |

50 | 41 |

50 | 42 |

50 | 43 |

50 | 44 |

50 | 44 |

50 | 45 |

50 | 45 |

50 | 46 |

50 | 47 |

47 | |

48 | |

49 | |

49 | |

49 | |

50 | |

50 | |

50 |

On the college COMET entrance test the essay score counts towards 50% of the criterion used for admission status. A perfect essay is a score of 50. Writing a good essay requires a strong command of English vocabulary, grammar, and the essay form. The essay provides a strong indicator of academic preparation. Which high school performed better on the essay spring 2009 - Xavier or SDA here on Pohnpei? This quiz examines this question.

- __________ What is the sample mean for Xavier?
- __________ What is the sample mean for Pohnpei SDA?
- ____________________ What is the p-value based on a two-tailed t-test for independent samples? [Keep four decimal places]
- ____________________ What is the maximum confidence that the difference is statistically significant? [Keep four decimal places]
- ____________________ Should you
*reject***or***fail to reject*a null hypothesis of no difference in the means for an alpha of 5%?