Practice Exam 3

Practice Exam 3 - The following information is for 1-5 A...

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The following information is for 1-5 A Quality Analyst wants to construct a control chart for determining whether three machines, all producing the same product, are under control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results: 1. What is the sample mean for machine #1? A) 15 B) 16 C) 17 D) 21 E) 23 Answer: B 2. What is the estimate of the process mean for whenever it is under control? A) 16 B) 19 C) 20 D) 21 E) 23 Answer: C 3. What is the estimate of the sample average range based upon this limited sample? A) 13.0 B) 4.33 C) 5.4 D) 4.2 E) 2.0 Answer: B 4. What are the x-bar chart three sigma upper and lower control limits? A) 22 and 18 B) 23.29 and 16.71 C) 23.5 and 16.5 D) 23.16 and 16.84 E) 24 and 16 Answer: D 5. For upper and lower control limits of 23.29 and 16.71, which machine(s), if any, appear(s) to have an out-of-control process mean? A) machine #1 B) machine #2
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C) machine #3 D) all of the machines E) none of the machines Answer: A 6. Which of the following is not a benefit of centralized purchasing? A) potential for quantity discounts B) better service from suppliers C) quick response to local needs D) potential for use of purchasing specialists E) supplier research Answer: C 7. The purchasing perspective of the supplier as a partner is characterized by: A) an emphasis on low prices
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This note was uploaded on 06/05/2011 for the course BUS 101 taught by Professor T.mcgee during the Spring '08 term at FSU.

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Practice Exam 3 - The following information is for 1-5 A...

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