Question

A suitable chart for controlling fraction defective is c chart
a. True
b. False

Answer 1

False it is the p chart

Answer 2

A suitable chart for controlling fraction defective is c chart is False statement.

Option (b)

Explanation:

• The c graph is for the 'amount of defect' in the product. The number of defects, c chart is on the basis of the 'Poisson distribution'. It's a graph of the 'number of defects in the products'.
• The 'p chart' is for the 'fraction of defective items' in a sample. The 'fraction defective' is calculated as the number of items defective in a sample prorated by the number of total items in a sample.

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