Which of the Following Describes the Purpose of Statistical Process

Multiple Choice

Which of the following describes the purpose of statistical process control (defect-prevention) ?

A) A consumer buys a TV and plugs it in.It doesn't work and she returns it.
B) A soft drink company samples its product at 25 retail establishments to determine if the canner's mixture meets the soft drink company's standard.
C) The Army purchases hammers and tests 10 of them before accepting the entire shipment.
D) Computer chips received by a computer maker are sampled before the shipment is accepted or rejected.
E) The manufacturer of pocket knifes samples its process at three stages before allowing the pocket knives to be assembled.