I the Null Hypothesis in the Goodness-Of-Fit Test Is That

i. The null hypothesis in the goodness-of-fit test is that there is no difference. ii. The alternative hypothesis states that there is a difference between the observed frequencies and the expected frequencies in a goodness-of-fit test.
iii. The number of degrees of freedom appropriate for the chi-square goodness-of-fit test is the number of categories minus 1.

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.