Question 4 2 pts One unsettled controversy regarding chi-square tests has to do with: O small observed frequencies O large observed frequencies O large expected frequencies O small expected frequenciesQuestion 5 What is the research hypothesis in a chivsquare test on independence? (:1 The means of the populations are not equal D The two population variances are independent (:1 The two variables are related {dependent} in the population (:1 The means of the populations are equal Question 6 Typical applications of the chivsquare test include comparing: (:1 Student preference for studying while sitting or lying down assessed as sophomores and again as seniors D A dog's selection of dog food when presented with 3 options today and tomorrow (:1 Children's enjoyment of play with a specic toy at age 2 and again at age 4 C: The number of people of different ethnicities working in a particular company with the proportions of those ethnicities in the general public