SCENARIO 18-5
a Manufacturer of Computer Disks Took Samples of 240

question 156

Essay

SCENARIO 18-5
A manufacturer of computer disks took samples of 240 disks on 15 consecutive days. The number of
disks with bad sectors was determined for each of these samples. The results are in the table that
follows. $\begin{array}{ccc} \underline{\text { Day }}& \underline{\text { Bad }} & \underline{ \% \mathrm{Bad}}\\1 & 9 & 0.037500 \\2 & 7 & 0.029167 \\3 & 4 & 0.016667 \\4 & 6 & 0.025000 \\5 & 8 & 0.033333 \\6 & 3 & 0.012500 \\7 & 6 & 0.025000 \\8 & 10 & 0.041667 \\9 & 16 & 0.06667 \\10 & 24 & 0.100000 \\11 & 15 & 0.062500 \\12 & 9 & 0.037500 \\13 & 4 & 0.016667 \\14 & 8 & 0.033333 \\15 & 6 & 0.025000\end{array}$

-Referring to Scenario 18-5, construct a p control chart for these data.

Grasp the general purpose of probability and its application in predicting the likelihood of events.

Identify and apply the most appropriate method of establishing probability based on the nature of the event or outcome under consideration.

Understand the concept of subjective assessment in determining probabilities.

Understand and apply different methods for establishing probabilities (method of equal alternatives, method of frequency, intuitive judgment, counting method).

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Definitions:

Field-Dependent

A cognitive style in which an individual’s ability to perceive and memorize information is strongly influenced by the surrounding context.

Trichromatic Theory

A theory explaining color vision based on the presence of three types of color receptors in the eye, each sensitive to red, green, or blue.

Color Afterimages

Visual illusions where an image continues to appear in one's vision after exposure to the original image has ceased, typically in complementary colors.

Hammer

A tool typically used to drive nails into, or pull them from, some other object, usually consisting of a handle and a heavy head used to deliver an impact.