{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Quiz8b_KEY_Sp11

# Quiz8b_KEY_Sp11 - B Name_KEY 20 April 2011 IE330 Spring...

This preview shows pages 1–2. Sign up to view the full content.

Name: ____________KEY______________________ B 20 April 2011 IE330 Spring 2011 Closed book, closed notes, no calculators Quiz #8b For all questions, refer to these figures and output. Please keep your answers short. Kruskal-Wallis Test: Rating versus Rater Kruskal-Wallis Test on Rating Rater N Median Ave Rank Z 1 9 4.000 18.1 -0.15 2 16 4.000 19.8 0.64 3 11 3.000 17.0 -0.55 Overall 36 18.5 H = 0.45 DF = 2 P = 0.798 H = 0.46 DF = 2 P = 0.794 (adjusted for ties)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Name: ____________KEY______________________ B In this example, 3 groups of raters were asked to rate the desirability of the interior of a new luxury car. Group 1 currently owned a car priced in the \$15,000 - \$25,000 range, group 2 currently owned a car in the \$25,000 \$50,000 range, and group 3 currently owned a car worth more than \$50,000. The rating was on a scale of 1 7, where 1 = Very poor and 7 = Exceptional. (A rating of 4 was satisfactory.) The null hypothesis of the test is that the different groups rated the car differently from one another. 1. Identify the assumptions of the Kruskal Wallis test and whether you think they have been met in this case or not.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 2

Quiz8b_KEY_Sp11 - B Name_KEY 20 April 2011 IE330 Spring...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online