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9 In a bumper test, three test vehicles of each of three types of autos were crashed into a barrier at 5 mph, and the resulting damage was estimated. Crashes were from three angles: head-on, slanted, and rear-end. The results are shown below. Research questions: Is the mean repair cost affected by crash type and/or vehicle type? Are the observed effects (if any) large enough to be of practical importance (as opposed to statistical significance)? points 5 mph Collision Damage ($) Crash Type Goliath eBook Head - On Varmint 710 Weasel 1, 720 2, 290 1, 480 1 , 680 1, 600 References 800 Slant 1 , 650 1, 750 1, 410 1, 880 2, 020 1 , 750 1, 760 1, 550 1, 280 1 , 640 2, 410 Rear- end 760 800 1, 670 1, 280 1, 550 1, 630 930 1 , 260 1, 260 Click here for the Excel Data File (a-1) Choose the correct row-effect hypotheses. a. Ho: A1 # A2 # A3 # 0 H: All the A; are equal to zero Angle means differ b . He: A1 = A2 = A3 = 0 Angle means are the same H1: Not all the Aj are equal to zero - Angle means are the same = Angle means differ Oa ob (a-2) Choose the correct column-effect hypotheses.Saved Help 9 (a-2) Choose the correct column-effect hypotheses. 2 a. He: B1 * B2 + B3 * 0 points H1: All the Bo are equal to zero Vehicle means differ b. Ho: B1 = B2 = B3 = 0 Vehicle means are the same