If 20 Samples of a Production Process Are Taken and There

question 16

Multiple Choice

If 20 samples of a production process are taken and there are 240 total defects,the upper and lower control limits for a 3-sigma c-chart are

• A)UCL = 16.472,LCL = 7.528
• B)UCL = 15.464,LCL = 8.536
• C)UCL = 22.392,LCL = 1.608
• D)UCL = 18.728,LCL = 5.272

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Definitions:

Probability Distribution

A statistical function that describes all the possible values and likelihoods that a random variable can take within a given range.

Mean

The average value of a set of numbers, calculated by dividing the sum of all the numbers by the count of items in the set.

Uniform Probability Distribution

A type of probability distribution where all outcomes are equally likely to occur.

Random Variable

A variable whose possible values are numerical outcomes of a random phenomenon or experiment.