Test the deliverable
The project you are managing is nearing its end. Your testing team is currently inspecting the final deliverable. Which process is your project on?
A. Verify Scope
B. Control Scope
C. Perform Quality Assurance
D. Perform Quality Control
Answer: D. Perform Quality Control
According to the PMBOK®, Quality Control is the process of monitoring and recording results of executing the quality activities to assess performance and recommend necessary changes. In short, inspection! Do not confuse quality control with scope verification, the latter involving a formal sign-off by the customer.
One sigma, two sigma, three sigma, six sigma!
If 1 sigma is equal to 68.26% and 6 sigma is equal to 99.9997%, what does 2 sigma equal?
A. 74.52%
B. 81.24%
C. 88.79%
D. 95.46%
Answer: D. 95.46%
2 sigma is 95.46% while 3 sigma is 99.73%.
Cost of conformance
Costs that are usually associated with conformance are:
A. Training and testing
B. Scrap and rework
C. Liabilities
D. Lost business
Answer: A. Training and testing
Costs of conformance include prevention costs (e.g. training) and appraisal (e.g. testing). All other choices are costs of nonconformance.
Control chart out-of-control
When using a control chart, which of the following tells you that the process is out-of-control?
A. The UCL is higher than the LCL.
B. The highest and lowest plots are more than 1% apart.
C. There are seven or more consecutive plots on either side of the mean.
D. The LCL is lower than zero.
Answer: C. There are seven or more consecutive plots on either side of the mean.
When there are seven or more consecutive plots either above the mean or below the mean, the process out-of-control and should be investigated.
Two things cannot happen at once
As Elaine documents test results, she completes each case with either a pass or a fail. This is an example of:
A. Standard deviation
B. Mutually exclusive
C. Statistical independence
D. Fitness for use
Answer: B. Mutually exclusive
Mutually exclusive, at the most basic level, means that two things cannot happen at the same time. In this example, each test case is either a pass or a fail. Elaine cannot choose both.
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