A survey was recently conducted in which random samples of car ...

[leo leo]

A survey was recently conducted in which random samples of car owners of Chrysler, GM, and Ford cars were surveyed to determine their satisfaction. Each owner was asked to rate overall satisfaction on a scale of 1 (poor) to 1000 (excellent).
 
  The following data were recorded:
  Chrysler GM Ford
  650 400 700
  700 800 750
  500 500 650
  800 400 800
  900 600 900
  750 900 700
 
  If the analysts are not willing to assume that the population ratings are normally distributed and will use the Kruskal-Wallis test to determine if the three companies have different median ratings, what is the appropriate critical value if the test is to be conducted using an alpha = .05 level?
  A) = 5.05
  B) 2 = 5.99
  C) 2 = 24.99
  D) = 3.67

Question 2

If we are interested in testing to determine whether the center of three or more populations is equal when the data in the samples are ordinal, what is the appropriate test to conduct?
 
  A) A t-test
  B) An ANOVA
  C) A Kruskal-Wallis
  D) A Wilcoxon Matched-Pairs Sign Rank test

[vickybb89]

Answer to Question 1

B

Answer to Question 2

C