Sample data were collected to compare the ages of CEOs of top growth companies in western Canada and Quebec. Because of small sample sizes, techniques introduced later in this chapter would be needed to compare group means. One such method assumes equal variances for the two groups. At the 0.05 significance level, test the claim that these two sample groups come from populations with the same variance.

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Western Canada 38 54 35 40 41 34 59 37 35 48 35 59 Quebec Based on data from Profit, May 29, 1996. 50 31 38 49 34 36 35 33 39 38