Data Set 19 "Car Crash Tests" in Appendix B lists results from car crash tests. The data set includes crash test loads (pounds) on the left femur and right femur. When those loads are partitioned into the three car size categories of small, midsize, and large, the two way analysis of results from XLSTAT are as shown below. (The row factor of femur has the two values of left femur and right femur, and the column factor of size has the three values of small, midsize, and large.) Use a 0.05 significance level to apply the methods of two-way analysis of variance. What do you conclude?

Data Set 19

Transcribed Image Text:

XLSTAT Mean Source DF squares Femur Size F Pr>F 1 166068.5952 166068.5952 13896 0.2462 2 532911.8571 266455.9286 2.2296 0.1222 Femur ize 2 410435.7619 205217.8810 1.7171 0.1940 squares SIZE HIC CHEST FEMUR L FEMUR R 1261 324 446 1048 1414 371 Chev Aveo Honda Civic Mitsubishi Lancer VW Jetta Hyundai Elantra 1188 Small 45 707 39