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QUESTION 1 Alaico Steel Inc. manufacturers steel tubes that are used in gas grills for residential customers. The tube's overall length is crucial to assure a proper t, and this dimension has been targeted as an important dimension to be stabilized for the steel tube manufacturing process. rIlubes are cut from rolls of steel tubing using a punch press. The tubes are measured using an operationally dened method and the table below summarizes the results. 8 samples have been collected. Within each sample, 6 tubes are measured. rIlube Length (in centimeters) Sample Number X- Egg; 1 1256 0.35 2 13.3 05 3 12.76 0.32 4 13.18 0.44 5 12.43 0.91 6 12.91 0.42 7 12.9 0.29 3 13.03 058 Based on the information provided, answer the following questions. 1. What is X-bar-bar? Round your answer to two decimals. For example, if your answer is 11.2364, input 11.24. Your answer is .(1 point) 2. What is R-bar? Round your answer to two decimals. For example, if your answer is 0.2364, input 0.24. Your answer is . (1 point) 3. According to the control chart parameter table, what is A2? Round your answer to two decimals. For example, if your answer is 11.2364, input 11.24. Your answer is . (1 point) 4. Using the answers you mpg in question 1, 2, and 3, what is the upper control limit of mean chart? Round your answer to two decimals. For example, if your answer is 11.2364, input 11.24. Your answer is . (1 point) 5. Using the answers you mpg in question 1, 2, and 3, what is the lower control limit of mean chart? Round your answer to two decimals. For example, if your answer is 11.2364, input 11.24. Your answer is . (1 point) 5. How many special cause variations do you identify from the mean chart? Round your answer to the nearest integer. Your answer is . (1 point) ?. What is D4? Round your answers to two decimals if needed. Your answer is . ( 1 point) 8. Using your answers for questions 2 and 7 , what is the upper control limit of range chart? Round your anst to two decimals. For example, if your answer is 11.2364, input 11.24. Your anst is . (1 point) 9. What is the lower control limit of range chart? Round your answer to two decimals. For example, if your answer is 11.2364, input 11.24. Your answer is . (1 point)