QUESTION 2 1 points Save Answer A quality manager is going to construct control charts for the samples shown below. What value of A2 should he/she use? Mean Sample 1 1 2 3 3 4 4 5 6 7 7 8 9 Item 1 0.92 0.98 0.85 0.92 0.75 0.96 0.82 0.95 0.97 0.79 0.99 0.82 0.73 0.9 0.4 Item 2 0.89 0.73 0.94 0.75 0.93 0.76 0.84 0.61 0.7 0.83 0.89 0.77 0.94 0.84 0.43 Item 3 0.89 0.87 0.81 0.59 0.89 0.85 0.8 0.88 0.86 0.65 0.83 0.87 0.82 0.95 0.85 Item 4 0.88 0.73 0.9 0.89 0.62 0.78 0.83 0.85 0.81 0.72 0.78 0.76 0.8 0.63 0.99 Item 5 0.97 0.94 0.77 0.68 0.93 0.83 0.74 0.89 0.79 0.76 0.92 0.67 0.81 0.94 0.8 Average: 0.91 0.85 0.85 0.77 0.82 0.84 0.81 0.84 0.83 0.75 0.88 0.78 0.82 0.85 0.69 0.82 Range 0.09 0.25 0.17 0.33 0.31 0.2 0.1 0.34 0.27 0.18 0.21 0.2 0.21 0.32 0.59 0.25 10 11 12 13 14 15 A. 0.73 B. 0.25 C. 0.82 D. 0.58