Suppose there is a random sample of1,107 observations, divided intofour groups.The table below summarizes the count of observations that were seen in each group.

Group 1 Group 2 Group 3. Group 4 5.31 TOE 3:02 WE are interested in testing the null hypothesis }/{ : }I - U.S. `` = 0Z }} = 0 1. 01 = OZ.HI . All of the proportions are incorrect . O HI : All of the proportions are equal to each other HI . At least one of the proportions is incorrect .\f