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Analysis of Variance (ANOVA)

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Chest Deceleration in a Car Crash. The chest deceleration data (g) are given below. Use a 0.05 significance level to test the null hypothesis that the different weight categories have the same mean. Do the data suggest that larger cars are safer?

Subcompact: 55 47 59 49 42
Compact: 57 57 46 54 51
Midsize: 45 53 49 51 46
Full-size: 44 45 39 58 44

Perform the necessary hand calculations with the appropriate formula accompanied with the appropriate tables whenever necessary.

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Solution Summary

This solution uses ANOVA to test the hypothesis that the different weight categories have the same mean.

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