McDaniel Shipyards Wants to Develop Control Charts to Assess the Quality

question 17

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:

Yoga

A group of physical, mental, and spiritual practices or disciplines which originated in ancient India, aimed at controlling the mind, body, and soul.

Katsushika Hokusai

A renowned Japanese artist and printmaker of the Edo period, best known for his series of woodblock prints, "Thirty-Six Views of Mount Fuji," including "The Great Wave off Kanagawa."

Great Wave Off Kanagawa

A famous woodblock print by Japanese artist Hokusai, iconic for its dramatic depiction of a massive wave and Mount Fuji in the background.

Woodblock

A technique or the physical block used in woodblock printing, where designs are carved into wood to be inked and transferred to paper or fabric.