Test the null hypothesis that all three political poitions are equally represented in the print media. random sample 60 conservative 15 moderate 18 liberal 27 Solution use a goodness-of-fit test since n=60 and we have three categories, the expected counts are each 60/3 = 20 compute the test statistic: (15-20)^2/20 + (18-20)^2/20 +(27- 20)^2/20 = 3.9 degrees of freedom = 3-1 = 2 use chi-square table with df = 2 or calculator to find P-value = 0.14 Because the P-value is reasonably large, we fail to reject the null hypothesis and conclude that there is no evidence that the positions are not equally represented..