SCENARIO 15-4
a Factory Supervisor Is Concerned That the Time

question 40

Short Answer

SCENARIO 15-4
A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits.The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours.The sample mean and range for each hour are listed below.
$$\begin{array} { cc c } \underline { \text { Hour } } & \underline { X } & \underline { R } \\1 & 18.4 & 25 \\2 & 16.9 & 27 \\3& 23.0 & 30 \\4 & 21.2 & 23 \\5 & 21.0 & 24 \\6 & 24.0 & 25 \\7&19.3&12\\8 & 15.8 & 14 \\9 & 20.0 & 13 \\10 & 23.0 & 11\end{array}$$ She also decides that lower and upper specification limit for the critical-to-quality variable should be
10 and 30 seconds, respectively.
-Referring to SCENARIO 15-4, what is the value of the C p index?

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Definitions:

Defined Benefit Plan

A type of pension plan where an employer guarantees a specific retirement benefit amount to employees based on salary history and years of service.

401(k) Plan

A retirement savings plan sponsored by an employer which allows employees to save and invest a portion of their paycheck before taxes are taken out.

Downside Risks

Potential negative outcomes or losses that may occur as a result of an investment or decision.

401(k)s

Tax-advantaged, employer-sponsored retirement saving plans that allow employees to save a portion of their paycheck before taxes are taken out.