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

question 246

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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.
 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, suppose the supervisor constructs an R chart to see if the variability in collection times is in-control.This R chart is characterized by which of the following? A) Decreasing trend B) Increasing trend C) In-control D) Individual outliers  Hour XR118.425216.927323.030421.223521.024624.025719.312815.814920.0131023.011\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, suppose the supervisor constructs an R chart to see if the variability in collection times is in-control.This R chart is characterized by which of the following?


Definitions:

Successive Approximation

A behavioral strategy that rewards closer and closer approximations to the desired behavior.

Variable-Interval Reinforcement

A reinforcement schedule in operant conditioning where rewards are given after unpredictable time intervals, leading to steady and consistent responses.

Self-Actualization

The attainment of an individual's abilities and potential, seen as an essential motivation or demand inherent in every person.

Successive Approximations

A technique in behaviorism used to shape behavior by rewarding actions that are progressively closer to the desired behavior.

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