I the Number of Degrees of Freedom Appropriate for the Chi-Square

Multiple Choice

i. The number of degrees of freedom appropriate for the chi-square goodness-of-fit test is the
Number of categories minus 2.
ii. If there are extremely large differences between observed and expected frequencies the correct
Decision is to reject H0.
iii. There are 2 degrees of freedom for a contingency table classifying three levels of income with
Each gender.

A) (i) , (ii) , and (iii) are all correct statements.
B) (i) and (ii) are correct statements but not (iii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (ii) and (iii) are correct statements but not (i) .
E) (i) , (ii) , and (iii) are all false statements.