Business Studies, asked by jaysrinaveen3212, 1 year ago

Control chart for variables and attributes

Answers

Answered by NightFury
1
A number of samples of component coming out of the process are taken over a period of time. Each sample must be taken at random and the size of sample is generally kept as 5 but 10 to 15 units can be taken for sensitive control charts.

For each sample, the average value X̅ of all the measurements and the range R are calculated. The grand average X̅ (equal to the average value of all the sample average, X̅) and R (X̅ is equal to the average of all the sample ranges R) are found and from these we can calculate the control limits for the X̅ and R charts

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