Suspecting that a die may be unfair,you want to investigate.To check,you roll it 36 times,recording the number of times each face appears.
To see if these results are unusual,will you test goodness-of-fit,homogeneity,or independence?
A)Independence
B)Goodness-of-fit
C)Homogeneity

Question

Suspecting that a die may be unfair,you want to investigate.To check,you roll it 36 times,recording the number of times each face appears. 
To see if these results are unusual,will you test goodness-of-fit,homogeneity,or independence?
A)Independence 
B)Goodness-of-fit 
C)Homogeneity

Quizplus · Accepted Answer

Goodness-of-fit tests are used to determine whether an observed frequency distribution differs significantly from an expected frequency distribution. In this case, the expected distribution is that each face will come up approximately one-sixth of the time in 36 rolls (i.e., 36/6 = 6 expected occurrences per face). Therefore, by using a goodness-of-fit test, we can compare the observed frequencies to the expected frequencies and determine if they are significantly different, which would suggest that the die may be unfair.

Suspecting That a Die May Be Unfair,you Want to Investigate