. We wish to see if two groups of nurses distribute their time in six different categories about the same way. That is, the hypothesis under consideration is Ho : Pa = piz, i = 1, 2,...,6. To test this hypothesis, nurses are observed at random throughout several days, each observation resulting in a mark in one of the six categories. A summary of the results is given by the following frequency table: Category 1 2 3 4 5 6 Totals Group I 95 36 71 21 45 32 300 Group II 53 26 43 18 32 28 200 Use a chi-square test with a = 0.05. (q = 3.23, do not reject H0)