When the author visited Dublin, Ireland (home of Guinness Brewery employee William Gosset, who first developed the t distribution), he recorded the ages of randomly selected passenger cars and randomly selected taxis. The ages (in years) are listed below. Use a 0.05 significance level to test the claim that in Dublin, car ages and taxi ages have the same variation.

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Car Ages4 08 11 14 3 443 58 33746618 2 15 11 4 1 6 1 8 Taxi Ages 8 8 0 3 8 43 3 6 1177 695 10 8 43