Table 64
the Manager of Kewpie Has Recently Implemented an Attribute-Based

question 133

Multiple Choice

Table 6.4
The manager of Kewpie has recently implemented an attribute-based process control method. The accompanying table shows the results of five different samples of dolls from the five weeks of production after the process control method was implemented.
$$\begin{array} { | c | c | c | } \hline \text { Week } & \begin{array} { c } \text { Sample } \\\text { Size }\end{array} & \begin{array} { c } \text { Number } \\\text { Defective }\end{array} \\\hline 1 & 100 & 3 \\2 & 100 & 20 \\3 & 100 & 23 \\4 & 100 & 12 \\5 & 100 & 13 \\\hline\end{array}$$
-Assume that the newly implemented control chart has a central line of p = 0.10,with the standard deviation computed from this original value.Assume also that z = 2 is used for defining the control limits and sample sizes of 100 dolls.What can be said about the doll-making process based on the first five weeks of experience from Table 6.4?

• A) The process is in control.
• B) The process is out of control.
• C) More information should be collected.
• D) The process is capable.

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