QUESTION #2: The data in the following table represent individual observations on molecular weight taken hourly...

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QUESTION #2: The data in the following table represent individual observations on molecular weight taken hourly from a chemical process. Observation no. X Observation no. X 1 1045 11 1139 2 1055 12 1169 3 1037 13 1151 4 1064 14 1128 5 1095 15 1238 6 1008 16 1125 7 1050 17 1163 8 1087 18 1188 9 1125 19 1146 10 1146 20 1167 The target value of molecular weight is 1050 and the process standard deviation is thought to be about = 25. a) Set up a tabular CUSUM for the mean of this process. Design the CUSUM chart using the standardized values h = 4.77 and k = 0.5. Interpret this chart. 1 MSCI-3050 Statistical Quality Design and Control b) Is the estimate of used in part (a) of this problem reasonable? c) Set up an EWMA control chart using = 0.2 and L = 3 for this process. Interpret the results. QUESTION #2: The data in the following table represent individual observations on molecular weight taken hourly from a chemical process. Observation no. X Observation no. X 1 1045 11 1139 2 1055 12 1169 3 1037 13 1151 4 1064 14 1128 5 1095 15 1238 6 1008 16 1125 7 1050 17 1163 8 1087 18 1188 9 1125 19 1146 10 1146 20 1167 The target value of molecular weight is 1050 and the process standard deviation is thought to be about = 25. a) Set up a tabular CUSUM for the mean of this process. Design the CUSUM chart using the standardized values h = 4.77 and k = 0.5. Interpret this chart. 1 MSCI-3050 Statistical Quality Design and Control b) Is the estimate of used in part (a) of this problem reasonable? c) Set up an EWMA control chart using = 0.2 and L = 3 for this process. Interpret the results.