Two random samples, one of 95 blue-collar workers and a second of 50 white-collar workers, were taken from a large company. These workers were asked about their views on a certain company issue. The following table gives the results of the survey. Opinion Favor ppose Uncertain Blue-collar workers 44 39 12 White-collar workers 21 26 Using the 2.5% significance level, test the null hypothesis that the type of workers and opinion are related or not.