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As a Step in Establishing Its Rates,an Automobile Insurance Company

Question 120

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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.Before actually testing the central hypothesis involving the mean speeds,if a hypothesis test is conducted to determine whether the population variances are equal using a significance level equal to 0.05,the critical value is approximately F = 2.95.
Anova: Single Factor
SUMMARY 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.Before actually testing the central hypothesis involving the mean speeds,if a hypothesis test is conducted to determine whether the population variances are equal using a significance level equal to 0.05,the critical value is approximately F = 2.95. Anova: Single Factor SUMMARY ANOVA ANOVA 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.Before actually testing the central hypothesis involving the mean speeds,if a hypothesis test is conducted to determine whether the population variances are equal using a significance level equal to 0.05,the critical value is approximately F = 2.95. Anova: Single Factor SUMMARY ANOVA

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