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could you help giving me explanation on these problems ? Thank you . Question 11 Regarding Problem 4. The estimated effects from shapes B, C

could you help giving me explanation on these problems ? Thank you .

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Question 11 Regarding Problem 4. The estimated effects from shapes B, C and D are -0.455, -0.156, -0.503, respectively. What is the estimated effect of shape A? Not yet answered Points out of 5.0 Flag question O a. 0.114 O b. -1.114 OC 1,114 O d. 0.000 Question 12 Not yet Problem 5. An engineer plans to conduct an experiment to study the quality of car tires. The experimenter wishes to determine whether the rubber compound and the number of ribs affect the quality of the tires. answered Two different rubber compounds and two different numbers of ribs are considered. The budget for the experiment allows him to produce 24 tires. Due to time constraints, the experiment will be conducted on two consecutive days. Every day, four runs will be performed by three different drivers. The same set of drivers will be used each day. Points out of 7.0 Flag question Which design would you recommend for this experiment? O A. Factorial design O B. Latin square design O C. Randomize Incomplete Block Design O D. Factorial design with blocks Question 13 Regarding Problem 5. Let Ti, ,, 7% and o, denote the effects of rubber compound, number of ribs, days and drivers, respectively: where { = 1, 2. j = 1, 2, k = 1, 2, 1 = 1, 2, 3. Select an appropriate model for Not yet this experiment. answered Points out of 5.0 Flag question O B. BigHI = 1 + Ti + By + ( TB) + 7 + 8 + euler O C. BIN = 1 + TI + B, + ( TB)y + 7 + 8 + ( 70 ) + engler Question 14 Not yet Consider an experiment to compare the mean thickness of cables produced on two different machines. Machine 1 is quite new compared to Machine 2. In fact, the engineers know that the variance of machine 2 is answered 2 = 9, while the variance of machine one is of = 1. The engineers are interested in estimating / - #2 with maximum precision, where , and # denote the mean thickness of cables produced by machines 1 Points out of B.0 and 2. The budget of the experiment allows you to conduct a total of 12 tests. Flag question How many tests should you conduct in each machine? O A 1 test using machine one and 11 tests using machine two O B. 6 tests using machine one and 6 tests using machine two C 3 tests using machine one and 9 tests using machine two O D. 8 tests using machine one and 4 tests using machine two

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