pls review the attached file and provide the best answers as usual. regards 1 answer below »

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pls review the attached file and provide the best answers as usual.

regards

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MEM 504: Quality Engineering Assignment # 2 Weight: 5% Due Date: 19/11/2016 Question 1: A manufacturer of wood screws periodically examines screws heads for the presence or absence of burrs. Subgroups of 300 screws are selected and examined using a carefully designed procedure. The collected data is as follows: Observation Number of Screws with Burrs 1 19 2 16 3 11 4 6 5 22 6 2 7 4 8 7 9 5 10 27 11 7 12 13 13 17 14 29 15 1 16 2 17 19 18 28 19 24 20 23 Find the centerline (show your calculations) Find the control limits (show your calculations) Use MINITAB to develop the appropriate control chart Are there any special causes of variation? Which observations? What to do next? Question 2: A given model of large radar dish represents the area of opportunity in which nonconformities may occur. Results of quality check for 25 radar assemblies are as follows: Radar Assembly Number Number of Nonconformities 1 25 2 60 3 28 4 65 5 91 6 56 7 40 8 54 9 90 10 44 11 62 12 81 13 70 14 75 15 24 16 50 17 70 18 56 19 21 20 88 21 34 22 82 23 53 24 102 25 64 Determine the centerline (show your calculations) Determine the control limits (show your calculations) Use MINITAB to develop the appropriate control chart Are there any indications of lack of control? What to do next? Question 3: Workers at a packaging operation shovels a granular product from a large pile into sacks that are then sealed and placed on pallets for shipping. A sequence of 25 subgroups each consisting of the weights of 5 sacks has been recorded as follows: Observations Subgroup # Sack 1 Sack 2 Sack 3 Sack 4 Sack 5 1 35.4 35.6 34.8 34.7 34.8 2 36 35.6 34.9 34.8 35.9 3 35.2 35 35 35.4 35.1 4 34.8 35.8 35.2 35 34.9 5 34.2 35 36.1 34.9 35.1 6 36 35 35.2 34.8 34.9 7 36.1 34.9 34.5 35 35.1 8 35.1 35 35.6 34.9 36.2 9 35 35.6 36.1 34.8 35.6 10 35.4 35.8 36 34.2 36 11 35.2 35.3 35.2 35.9 34.8 12 35.9 36 35.1 35.1 This document was truncated here…

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