b) The management of the Technology Development and Advisory Unit (TDAU) is concerned about the production...

 

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b) The management of the Technology Development and Advisory Unit (TDAU) is concerned about the production of a special component used in machines for its largest customers. The weight of the component is critical to the customers. Data from eight samples as shown in Table 2 has been collected. SAMPLE 1 45.8 51.6 58.9 50.2 51.5 2 58.6 43.8 44.8 44.2 34.1 3 40.2 50.1 59.6 48.8 47.8 Table 2 4 55.9 62.7 57.8 52.8 50.3 (i) Develop X-bar and R-charts for the process. 5 48.8 50.6 49.1 35.3 48.7 6 65.8 45.9 60.3 56.4 62.1 (ii) Should management be concerned about the process? Why? 7 53.2 54.3 59.6 49.8 54.6 8 56.5 52.5 40.8 50.5 67.7 (12 MARKS) (5 MARKS) b) The management of the Technology Development and Advisory Unit (TDAU) is concerned about the production of a special component used in machines for its largest customers. The weight of the component is critical to the customers. Data from eight samples as shown in Table 2 has been collected. SAMPLE 1 45.8 51.6 58.9 50.2 51.5 2 58.6 43.8 44.8 44.2 34.1 3 40.2 50.1 59.6 48.8 47.8 Table 2 4 55.9 62.7 57.8 52.8 50.3 (i) Develop X-bar and R-charts for the process. 5 48.8 50.6 49.1 35.3 48.7 6 65.8 45.9 60.3 56.4 62.1 (ii) Should management be concerned about the process? Why? 7 53.2 54.3 59.6 49.8 54.6 8 56.5 52.5 40.8 50.5 67.7 (12 MARKS) (5 MARKS)