7. In a study of the television viewing habits of children, a developmental psychologist selects a random sample of 300 first graders - 100 boys and 200 girls. Each child is asked which of the following TV programs they like best: The Lone Ranger, Sesame Street, or The Simpsons. Results are shown in the contingency table below: Lone Sesa The Range me Simps Total r Street ons Boys 50 30 20 100 Girls 50 80 70 200 Totals 100 110 90 300 Do the boys' preferences for these TV programs differ significantly from the girls' preferences? Use a 0.05 level of significance. Use chi-square test of homogeneity