Question: A Quality Analyst wants to construct a p chart for determining whether four machines, all producing the same product, are under control with regard to

A Quality Analyst wants to construct a p chart for determining whether four machines, all producing the same product, are under control with regard to a particular quality attribute. Accordingly, she inspected 1,000 units of output from each machine in random samples, with the following results:

MachinenNumber of Defectives #11,00023 #21,00015 #31,00029 #41,00013

14. What is the proportion defective for machine 1?

A. 0.023

B. 0.02

C. 0.015

D. 0.08

E. 0.23

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