1. A factory making circuit boards tests the quality by taking a sample of 500 c
ID: 365626 • Letter: 1
Question
1. A factory making circuit boards tests the quality by taking a sample of 500 circuit boards out of a shift’s production. Over time, the manufacturer has found that their circuit boards have an average of .02 defective proportion. One recent shift’s sample of 500 circuit boards yielded 30 defectives.
(a) Is the process in control based on the recent sample? (b) Why or why not? (Show all calculations).
2. There is no difference in Kaizen and BPR. True or False
3. Cause effect diagram proves root causes. True or False
4. Pareto chart separates "significant few from trivial many" True or False
5. Enterprise Resource Planning (ERP) drives many transaction processes within a company and its modules cover finance, accounting, marketing, operations, engineering, distribution, etc. aspects. True or False
Explanation / Answer
1. a. The process is not in control.
b. Because average defective is 2% but the sample has 30/500=6% defect which is 300% higher than the average.
2. False. To start with BPR is harder to implement than Kaizen.
3. False- It shouse what causes the effect.
4. True. Because it shifts our focus on 20% of those issues taht causes 80% of losses. here 20% is the segnificant few.
5. True. ERP covers the metioned modules and many other modules.
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