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This is not step-by-step solution, it's the question/answers solution. MyStatLab has an option "View an Example" that has all the formulas. I have the works for all practice quizzes though. 1. A new type of screening for lung cancer, CT, has been developed.

2. A study of Machiavellian traits in salesmen was performed.

3. Consider the accompanying dot plots A and B. Complete the ANOVA table for both dot plots. Plot A: 6,7,8,8,9,10; 12,13,14,14,15,16. Plot B: 5,7,7,11,11,13; 10,10,12,16,18,18.

4. The data in the table to the right resulted from the experiment that utilized a completely randomized design.

Treatment 1 | Treatment 2 | Treatment 3 |

3.9 | 5.1 | 1.4 |

1.4 | 2.7 | 0.8 |

4.2 | 4.5 | 2.0 |

5.4 | 3.7 | |

2.0 |

5. The partially completed ANOVA for 3×4 factorial experiment with two replications is shown to the right:

Source | df | SS | MS | F |

A | - | 0.3 | - | - |

B | - | 6.6 | - | - |

AB | - | 8.7 | - | - |

Error | - | - | - | |

Total | - | 16.3 |

6. A study of four different types of egg housing system was performed.

Cage/M | Cage/L | Free/M | Free/L | Barn/M | Barn/L | Organic/M | Organic/L |

483 | 489 | 525 | 513 | 526 | 533 | 514 | 524 |

451 | 486 | 511 | 530 | 526 | 486 | 493 | 560 |

508 | 473 | 525 | 524 | 531 | 516 | 532 | 522 |

483 | 477 | ||||||

458 | 471 |

7. What conditions must n satisfy to make x^2 test valid?

8. The table to the right gives the breakdown of the root causes of a sample of 91 industrial accidents…Test using a=0.05.

System Cause | Number of Incidents |

Design | 28 |

Procedures | 26 |

Management | 24 |

Training | 13 |

Total | 91 |

9. Each day’s proportion of one week’s total truck traffic is shown in the table to the right…Test using a=0.01.

Proportion | Number | |

Monday | 0.194 | 93 |

Tuesday | 0.192 | 86 |

Wednesday | 0.182 | 80 |

Thursday | 0.178 | 69 |

Friday | 0.157 | 51 |

Saturday | 0.041 | 25 |

Sunday | 0.056 | 30 |

10. Find the rejection regions for a test of independence of two classifications: a). a=0.05, r=4, c=6; b). a=0.10, r=5, c=6; c). a=0.01, r=4, c=5.

11. Test the null hypothesis of independence of the two classifications. Test using a=0.05.

B1 | B2 | B3 | |

A1 | 40 | 71 | 42 |

A2 | 63 | 53 | 72 |

A3 | 31 | 38 | 30 |

12. A researcher examined the political strategies used by the ethnic groups worldwide in their fight for minority rights. Each in a sample of 277 ethnic groups…Conduct a test using a=0.10.

World Region | No Political Action (N) | Mobilization, Mass Action (M) | Terrorism, Rebellion, Civil War (T) | Totals |

A | 24 | 31 | 7 | 62 |

B | 32 | 23 | 4 | 59 |

C | 12 | 22 | 27 | 61 |

D | 39 | 36 | 20 | 95 |

Totals | 107 | 112 | 58 | 277 |

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