N Columns1N Rows1 is the formula for the degrees of freedom
\"(N Columns–1)(N Rows–1)\" is the formula for the degrees of freedom for:
A. the chi-square test for goodness of fit.
B. the chi-square test for independence.
C. the chi-square statistic estimated from a one-way analysis of variance.
D. the chi-square statistic estimated from a two-way analysis of variance
Solution
B. the chi-square test for independence.
(C) and (D) do not exist; (A) only has one column of data.
