Question: Q2) a) Differentiate x bar and R chart diagrammatically. Q2) b) The following table gives the number of defects in refrigerator: 6. 2 4 Refrigerator

Q2) a) Differentiate x bar and R chart diagrammatically. Q2) b) The following table gives the number of defects in refrigerator: 6. 2 4 Refrigerator 1 Number of 3 defects 3 5 4 6 5 3 7 5 8. 3 10 2. ON No 3 Determine the UCL and LCL for C-chart
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