Siskel and Ebert. In the classic TV show Sneak Previews, originally hosted by the late Gene Siskel and Roger Ebert, the two Chicago movie critics reviewed the week’s new movie releases and then rated them thumbs up (positive), mixed, or thumbs down (negative). These two critics often saw the merits of a movie differently.

In general, however, were the ratings given by Siskel and Ebert associated? The answer to this question was the focus of the paper

“Evaluating Agreement and Disagreement Among Movie Reviewers” by A. Agresti and L. Winner that appeared in Chance (Vol. 10(2), pp. 10–14). The following contingency table summarizes the ratings by Siskel and Ebert for 160 movies. Siskel’s rating Ebert’s rating Thumbs Thumbs down Mixed up Total Thumbs 24 8 13 45 down Mixed 8 13 11 32 Thumbs 10 9 64 83 up Total 42 30 88 160 At the 1% significance level, do the data provide sufficient evidence to conclude that an association exists between the ratings of Siskel and Ebert?