A Chi-Square Test of Independence Is a One-Tailed Test

Multiple Choice

A chi-square test of independence is a one-tailed test. The reason is that:

A) we are testing whether the frequencies exceed their expected values.
B) we square the deviations, so the test statistic lies at or above zero.
C) hypothesis tests are one-tailed tests when dealing with sample data.
D) the chi-square distribution is positively skewed.