McDaniel Shipyards Wants to Develop Control Charts to Assess the Quality

question 111

Essay

McDaniel Shipyards wants to develop control charts to assess the quality of its steel plate. They take ten sheets of 1" steel plate and compute the number of cosmetic flaws on each roll. Each sheet is 20' by 100'. Based on the following data, develop limits for the control chart, plot the control chart, and determine whether the process is in control.
$$\begin{array} { | c | c | } \hline \text { Sheet } & \begin{array} { c } \text { Number of } \\\text { flaws }\end{array} \\\hline 1 & 1 \\\hline 2 & 1 \\\hline 3 & 2 \\\hline 4 & 0 \\\hline 5 & 1 \\\hline 6 & 5 \\\hline 7 & 0 \\\hline 8 & 2 \\\hline 9 & 0 \\\hline 10 & 2 \\\hline\end{array}$$

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Definitions:

Endorphins

Natural chemicals produced in the brain that act as painkillers and mood enhancers, often released in response to stress or physical activity.

Olfactory Receptors

Olfactory receptors are specialized nerve cells responsible for detecting odors and initiating the sense of smell.

Starchy

Relating to foods high in starch, like potatoes, which provide energy.

Sweet

A taste sensation often associated with the presence of sugar or substances that mimic the flavor of sugar.