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Oliver 175 - 56th Question

Posted: Thu Jan 05, 2017 12:10 pm
by jyotimayank
Question 56

What is true for statistical sampling?

A. Statistical sampling can be used to verify for each individual item in a lot, whether it can be accepted or must be rejected.
B. Attribute sampling means collection of quantitative data showing the level of conformity for each item of a sample.
C. Variables sampling includes collection of quantitative data on the degree of conformity for each item of a sample.
D. Statistical sampling is commonly used in quality assurance to examine if items of a lot conform to quality standards.

Re: Oliver 175 - 56th Question

Posted: Tue Jan 10, 2017 7:33 am
by sarthy
C as Statistical sample cannot be rejected

Re: Oliver 175 - 56th Question

Posted: Tue Jan 10, 2017 9:37 am
by jyotimayank
Yes Sarthy the correct answer is option C.

Refer to page 250 of PMBOKĀ® Guide 5th Edition
Statistical Sampling is chosing part of a population of interest for inspection. Sample frequency & size should be determined during the Plan Quality Management process.
Statistical sampling might also involve determining the standard deviation for a process, as discussed in the control chart tool and technique.
The measurements taken during attribute sampling determine whether they meet one of two options, conforming or nonconforming. In other words, the measurements conform or meet the requirement or they do not conform.
In Variable sampling the result is rated on a continuous scale that measure the degree of conformity

You can refer to the following link for more insight of this topic ... zenbridge/