SCENARIO 15-5
a Manufacturer of Computer Disks Took Samples of 240

question 50

Short Answer

SCENARIO 15-5
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. $\begin{array}{ccc} \underline{\text { Day }} & \underline{\mathrm{Bad}} & \text { \% } \underline{\mathrm{Bad}}\\1 & 9 & 0.037500 \\2 & 7 & 0.029167 \\3 & 4 & 0.016667 \\4 & 6 & 0.025000 \\5 & 8 & 0.033333 \\6 & 3 & 0.012500 \\7 & 6 & 0.025000 \\8 & 10 & 0.041667 \\9 & 16 & 0.066667 \\10 & 24 & 0.100000 \\11 & 15 & 0.062500 \\12 & 9 & 0.037500 \\13 & 4 & 0.016667 \\14 & 8 & 0.033333 \\15 & 6 & 0.025000\end{array}$
-Referring to SCENARIO 15-5, a p control chart is to be made for these data.The estimate of the standard error of the proportion of disks with bad sectors is .

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Definitions:

Hans Selye

A pioneering Hungarian-Canadian endocrinologist known for his research on the stress response and for introducing the concept of "General Adaptation Syndrome".

Physiological Arousal

A state of physical alertness or excitement, which can be triggered by emotions, thoughts, or external stimuli, affecting bodily functions.

Fight-or-flight Response

A physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival.

Walter Cannon

A physiologist who coined the term "fight or flight" to describe the body's response to stress, and made significant contributions to understanding the autonomic nervous system.