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As a step in establishing its rates,an automobile insurance company is interested in determining whether there is a difference in the mean highway speeds that drivers of different age groups drive.To help answer this question,it has selected a random sample of drivers in three age categories: under 21,21-50,and over 50.The engineers then recorded the drivers' speeds at a designated point on a highway in the state.The subjects were unaware that their speed was being recorded.The following one-way ANOVA output was generated from the sample data.Based on this output,the engineers can conclude that the assumption of equal variances is satisfied since the calculated F-value is less than the critical F from Hartley's table at α = .05.
Anova: Single Factor
SUMMARY ANOVA
Supplemental Nutrition Assistance Program
A U.S. government program that provides food-purchasing assistance for low and no-income people, formerly known as the Food Stamp Program.
Official Income Data
Income statistics and figures released by governmental or authoritative bodies, reflecting incomes across various demographics.
Purchasing Power
The value of currency expressed in terms of the amount of goods or services that one unit of money can buy.
Noncash Transfers
Benefits provided by the government or organizations in forms other than direct cash, such as food stamps or housing subsidies.
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