SCENARIO 15-4 a Factory Supervisor Is Concerned That the TimeShe Also Decides That Lower and Upper Specification Limit for It

The Answer of SCENARIO 15-4 a Factory Supervisor Is Concerned That the TimeShe Also Decides That Lower and Upper Specification Limit for It

SCENARIO 15-4 a Factory Supervisor Is Concerned That the TimeShe Also Decides That Lower and Upper Specification Limit for It

The Answer of SCENARIO 15-4 a Factory Supervisor Is Concerned That the TimeShe Also Decides That Lower and Upper Specification Limit for It

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

Question 45

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

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

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

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