Historically,the average proportion of defective bars has been 0.015.Samples will be of 100 bars each.Construct a p-chart using z = 3.Suppose a sample had 0.04 defectives.What would you do?
A)Nothing;it appears to be random variation.
B)Look for assignable causes.
C)Change z to 2 and take another sample.
D)Change z to 4 and continue sampling.

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The Answer of Historically,the average proportion of defective bars has been 0.015.Samples will be of 100 bars each.Construct a p-chart using z = 3.Suppose a sample had 0.04 defectives.What would you do?
A)Nothing;it appears to be random variation.
B)Look for assignable causes.
C)Change z to 2 and take another sample.
D)Change z to 4 and continue sampling.

Historically,the Average Proportion of Defective Bars Has Been 0