I the Alternative Hypothesis States That There Is a Difference

Multiple Choice

i. The alternative hypothesis states that there is a difference between the observed frequencies and the expected frequencies in a goodness-of-fit test.
Ii) The number of degrees of freedom appropriate for the chi-square goodness-of-fit test is the number of categories minus 1.
Iii) If there are extremely large differences between observed and expected frequencies the correct decision is to reject H0.

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) All statements are false