8) The braking distances of 9 Chevrolet Cobalts and 11 Toyota Camrys were tested in similar conditions. The results are given in this chart: f1 = 142 feet 372 = 147 feet 51 = 5.8 feet 52 = 2.7 feet n1 = 9 n; = 11 At a = 0.05, can you conclude that there is a difference in the average braking distances of the two types of cars? Perform a hypothesis test for your decision. 9) The prices for 15 randomly selected automobile batteries are shown in the table. The prices are classified accorwg to battery type. Using an ANOVA test with a: 0.10, is there enough e ence to conclude that at least one of the mean battery prices is different from the others? Group size 35 Group size 65 Group size 34/78 55 70 75 55 80 95 80 80 60 75 95 11) A local commerce expert believes that the day of the week that people order food for delivery is uniformly distributed. To test this, you randomly select 581 restaurants and record the day on which each order takes place. The results are shown below. Using a chi-square goodness-of-fit test at a = 0.05, test the claim. Day Sunday Monday Tuesday Wednesday Thursday Friday Saturday Orders 67 40 48 64 82 148 132 Print Layou