a. What characteristic of the data: above indicates that we should use one-way analysis of variance?
b. If the objective is to test the claim that the three size categories have the same mean chest deceleration, why is the method referred to as analysis of variance?
Assume that we plan to use a 0.05 significance level to test the claim that the different size categories have the same mean chest deceleration in the standard crash test.

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Chest Deceleration Measurements (g) from a Standard Crash Test Small Midsize Large 37 39 53 45 54 42 38 39 42 43 49 32 37 SPSS Sum of Squares Sig. Between Groups Within Groups Total 200.857 549.714 750.571 Mean Square 100.429 30.540 061 20