Question
The probability law used for calculating the control limits of 'P' chart is
The correct answer is
Binomial
Each inspected item is either conforming or nonconforming, so the count of nonconforming units follows a binomial model. This gives \(\sigma_p=\sqrt{\bar p(1-\bar p)/n}\) for p-chart limits.
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Important Questions from Quality Control - Teaching
- Assertion (A) : Clean-in-place method of cleaning requires no disassembly or only partial disassembly of equipment.
Reason (R) : The pieces of equipment are cleaned and sanitized by circulation of chemical compounds through a piping system in clean-in-place method.
Codes : - Which is the correct danger zone in food production ?
- Some tools needed for problem solving are :
(a) Pareto chart
(b) Check sheet
(c) Profit and loss statement
(d) Cause and effect diagram
(e) Standardized recipes
(f) Process chart An X̅ chart uses the following data
- $\bar{X}$ and R-charts are for which of the following ?
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