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Project Part II

_____ **Confidence Intervals** (10 points)

Compute a 95% confidence interval for each of your quantitative varibles. | |

Consider each qualitative variable as a binomial variable (only two possible answers). For example, if you asked "What year are you?" then group them into underclassmen or lowerclassmen. Compute a 95% confidence interval for these binomial variables. | |

Compute at least 3 two-variable confidence intervals. For example, if you asked people their year and GPA, you might consider the difference in the average GPA of upperclassmen and lowerclassmen. | |

You do not have to type your computations. You can do them by hand and attach them as an appendix at the end of the report. |

_____ **Hypothesis Tests** (10 points)

Formulate at least 5 good hypotheses and test them. At least 3 should be two-variable tests. For example, you might test if the GPA of lowerclassmen is greater than the GPA of upperclassmen. | |

You do not have to type your computations. You can do them by hand and attach them as an appendix at the end of the report. |

_____ **Analysis of the Results** (20 points)

Discuss the sizes of your confidence intervals. Were any too large to be meaningful? If so, how many measurements (what should n be?) to find an interval small enough to be useful? | |

Discuss each of the hypothesis tests you conducted. What did you find? Was it what you expected? Why do you think that was the case? | |

What are the real-world implications of your results? Give any other particularly impressive observations. |

_____ **Report Format **(5 points)

Report looks professional and is well-written. Spelling and grammar are correct. It is written as a report, not a list of answers to questions. | |

The report is well-organized and readable. | |

Include any of the graphs or calculations you did for Part I that help illustrate your results. (In some ways, the goal of Part I was to get a feel for the data, while Part II tests your impressions and presents your complete results. | |

Color and graphics used well. |

_____ **Baseline Total** 45 points (out of 50)

Confidence Intervals | 3 point deductions for missing confidence intervals | |

Hypothesis Testing | 3 point deductions for missing hypothesis tests | |

Analysis of Results | 5 point bonuses for detailed, illuminating data analyses; 5 point deductions for missing data analyses | |

Collection of Data | 3 point bonuses for exceptional presentation/format; 3 point deductions for non-professional presentation/format |