Jone's Car Sales is concerned with the sales of their Lexus motor cars. There are four main engine types for that particular vehicle: 4 cylinder, 5 cylinder, 6 cylinder and 8 cylinder. A sample of cars were tested for their miles per gallon and the results are:  18.5 26.8 20.7 26.1 = 4 cylinder 22.8 19.9 23.6 22.8 = 5 cylinder 23.1 21.9 17.2 23.7 = 6 cylinder 24.4 17.5 23.5 26.2 = 8 cylinder a. What is the analysis of the variance table, manually. b. What is the null hypothesis(es), the decision rule for a=0.05 and the decision for each hypothesis.

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The retail price for an LG Dishwasher with an extended 2-year warranty is $900, but the actual production cost of the dishwasher is $112.83. There is a 18% chance that dishwasher will need to be replaced during the extended 2-year warranty period. If the company has to replace the dishwasher within the 2-year warranty period, it will cost the company $112.83 to replace the dishwasher. a) Write out the probability distribution for the company's net profit. Make sure you enter your X values from smallest to largest. X 674.34 P(X) 0.18 787.17 0.82 b) What is the expected value of the extended warranty? Round final answer to 2 decimal places and write the units in the second box. 766.86 dollars c) Which of the following is the correct interpretation of the expected value of the warranty? Every time a customer buys the extended warranty the dishwasher breaks For many of these extended warranties bought by customers, the company can expect to gain 625.17 dollars per warranty on average Every…