Instruction 18-5
the Maker of a Packaged Candy Wants to Evaluate

question 10

Short Answer

Instruction 18-5
The maker of a packaged candy wants to evaluate the quality of her production process.On each of 16 consecutive days,she samples 600 bags of candy and determines the number in each day's sample that she considers to be of poor quality.The data that she developed follow.
$\begin{array}{ccc}&Number&Proportion\\Day&Poor&Poor\\\hline1 & 33 & 0.0550000 \\2 & 29 & 0.0483333 \\3 & 31 & 0.0516667 \\4 & 32 & 0.0533333 \\5 & 43 & 0.0716667 \\6 & 45 & 0.0750000 \\7 & 46 & 0.0766667 \\8 & 48 & 0.0800000 \\9 & 48 & 0.0800000 \\10 & 46 & 0.0766667 \\11 & 28 & 0.0466667 \\12 & 32 & 0.0533333 \\13 & 28 & 0.0466667 \\14 & 32 & 0.0533333 \\15 & 31 & 0.0516667 \\16 & 24 & 0.0400000\end{array}$
-Referring to Instruction 18-5,a p control chart is to be constructed for these data.The centre line for the chart should be located at ________.

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Definitions:

Gasoline

A transparent, petroleum-derived liquid that is used primarily as a fuel in most spark-ignited internal combustion engines.

Car Wash

A facility for cleaning vehicles, typically involving an automated system with brushes and water jets or a manual cleaning by workers.

Marginal Decisions

Decisions made based on the additional benefit or cost of consuming or producing one more unit of a good or service.

Additional Costs

Are extra costs that may not have been initially accounted for or that occur beyond the expected costs of production or operations.