Two competing ice cream stores, Yum-Yum and Goody, both advertise quarter-pound scoops of ice cream. There is some concern about the variability in the serving sizes, so two members of a local consumer group have sampled 25 scoops of Yum-Yum’s ice cream and 11 scoops of Goody’s. Of course, both members now have stomachaches, so you must help them out. Is there a difference in the variance of ice cream weights between Yum-Yum and Goody? The following data have been collected. Test at the 0.10 level.
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