The categories of a categorical variable are given along with the observed counts from a sample. The

Question:

The categories of a categorical variable are given along with the observed counts from a sample. The expected counts from a null hypothesis are given in parentheses. Compute the Ï‡²-test statistic, and use the Ï‡²-distribution to find the p-value of the test.

A B C D 132 (160) 181 (160) 45 (40) 42 (40) Category Observed (Expected)