140 tions Mana causes? a. Assignable causes enable the manager to assign blame b

Question

140 tions Mana causes? a. Assignable causes enable the manager to assign blame b. Common causes are purely random. c. Common causes indicate that the process is out of contro d. Assignable causes are unavoidable 3. Which of the following is not one of the decisions to be ing SPC? a. Which rule of thumb you should use to identify improbable result b. What quality characteristic you should measure c. What your sampling planis d. How much risk you are willing to accept for being wrong 4. Which of the following guidelines should be considered when deciding where to take measurements in a process? a. Where the cost of poor quality is greatest b. After a bottleneck C. Before a step that would obscure important quality characteristics d. a and o e. All of the above Which of the following factors is used to estimate the standard deviation, when using sample ranges, for an X chart? a. 0.58 5. 6. Since the normal distribution is symmetrical, control charts are always symmetrical a. True b. False 7. If a quality characteristic is being measured as either defective or nondefect ve the correct SPC chart to use would be b. R C. 8. Ifthe tolerances fallwithin the UCL and LCL of a process, then we would consider the process to be capable. a. True b. False

Explanation / Answer

2 a)Assignable cause enables the managers to blame( because assignable causes can be identified and removed).

3 a) Which rule of thumb should we use to identify improbable results(as risk, quality & sampling plan are the decisions made)

4 d)A & C ( Where the cost of poor quality is high & before the step that would obscure important quality characteristics)

5 b)A2 (this comes from control limit equation X-bar chart)

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