Head Injury in a Car Crash The head injury data (in hic) 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 681 428 917 898 420 Between= Within= MSEwithin MSE between F-Statistic= df₁= df₂= Midsize 469 727 525 454 687 Full-size 384 656 602 687 360 (Round to 2 decimals) (Round to 2 decimals) (Round to 2 decimals) (Round to 2 decimals) (Round to 4 decimals) decimals)

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