In general,which of the following is NOT a condition that needs to be met in order to use a c-chart?
A)when the product can be easily classified as defective or nondefective
B)when there is a need to monitor the number of defects or nonconformities in each unit or sample
C)when the samples examined for occurrences of defects are drawn from a very large population
D)when the potential errors or nonconformities that could occur are known prior to data collection

Question

Quizplus · Accepted Answer

A c-chart is used for monitoring the number of defects per unit of output, where the output could be a product, service, or process over time. The key conditions for using a c-chart include having a constant sample size (if the sample size varies, a u-chart is more appropriate), the number of defects or nonconformities must be able to occur more than once in each unit or sample, and the occurrences of defects are independent of each other. The condition that the product can be easily classified as defective or nondefective is not specific to c-charts but rather a general requirement for any type of control chart dealing with defects or nonconformities, including p-charts which are used for the proportion of defective items. Therefore, it's not a unique condition that needs to be met specifically for using a c-chart.

In General,which of the Following Is NOT a Condition That