Sample 1 Sample 2 Sample 3 Sample 4 Observation 1 15.0 14.2 15.1 15.2 Observation 2 15.0 15.0 15.2 15.2 I Observation 3 14.9 14.8 15.0 15.2 Observation 4 15.1 15.3 15.1 15.0 Total 60 59.3 60.4 60.6 Mean (1) = (60/4) = 15 (59.3/4) = 14.8 (60.4/4) = 15.1 (60.6/4) = 15.2 Average Mean (15+14.8+15.1+15.2/4) = 15.03 X 0.2 1.1 0.2 0.2 Range (R) (Max - Min) = Average Range (R) (0.2+1.1+0.2+0.2/4) = 0.43 Problem 41 (continued) Table of Factors for Control Chart Control Limits Based on Three-Sigma No. of Observations in Sample Factor Factor Factor n A2 D DA 3 1.02 0 2.57 4 0.73 0 2.28 5 0.58 0 2.11 Use the average mean and range values, along with the information in the table above, to determine the upper control limit and lower control limit for both the mean and the range control charts. Show your work as we did in all class examples and calculate all answers to two decimal points. Left click on the formulas that are given below and edit them as needed to show your work (just as we did in class). Mean Control Chart Equations: UCL = 7 + A2R = LCL = x - A R = R-Chart Equations: UCLr = DAR = LCLR = D3 R = In preparation for creating the quality control charts, fill in the appropriate values in the table below. Mean Upper Control Limit Lower Control Limit Mean Control Chart Range Control Chart