I Chi-Square Test Statistic Used in a Goodness-Of-Fit Test Has

i. chi-square test statistic used in a goodness-of-fit test has k - 1 degrees of freedom.T2 ii. The chi-square goodness-of-fit test can be applied if there are equal or unequal expected frequencies.T2
Iii) For a goodness-of-fit test, the number of degrees of freedom is determined by k - 2, where k is the number of categories.

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