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 172

Multiple Choice

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.
$SCENARIO 15-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits.The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours.The sample mean and range for each hour are listed below. \begin{array} { cc c } \underline { \text { Hour } } & \underline { X } & \underline { R } \\ 1 & 18.4 & 25 \\ 2 & 16.9 & 27 \\ 3& 23.0 & 30 \\ 4 & 21.2 & 23 \\ 5 & 21.0 & 24 \\ 6 & 24.0 & 25 \\ 7&19.3&12\\ 8 & 15.8 & 14 \\ 9 & 20.0 & 13 \\ 10 & 23.0 & 11 \end{array} She also decides that lower and upper specification limit for the critical-to-quality variable should be 10 and 30 seconds, respectively. -Referring to SCENARIO 15-4, suppose the supervisor constructs an X chart to see if the process is in-control.What is the center line of the chart? A) 20.00 B) 20.26 C) 21.00 D) 24.26$ $\begin{array} { cc c } \underline { \text { Hour } } & \underline { X } & \underline { R } \\1 & 18.4 & 25 \\2 & 16.9 & 27 \\3& 23.0 & 30 \\4 & 21.2 & 23 \\5 & 21.0 & 24 \\6 & 24.0 & 25 \\7&19.3&12\\8 & 15.8 & 14 \\9 & 20.0 & 13 \\10 & 23.0 & 11\end{array}$ 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 X chart to see if the process is in-control.What is the center line of the chart? $SCENARIO 15-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits.The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours.The sample mean and range for each hour are listed below. \begin{array} { cc c } \underline { \text { Hour } } & \underline { X } & \underline { R } \\ 1 & 18.4 & 25 \\ 2 & 16.9 & 27 \\ 3& 23.0 & 30 \\ 4 & 21.2 & 23 \\ 5 & 21.0 & 24 \\ 6 & 24.0 & 25 \\ 7&19.3&12\\ 8 & 15.8 & 14 \\ 9 & 20.0 & 13 \\ 10 & 23.0 & 11 \end{array} She also decides that lower and upper specification limit for the critical-to-quality variable should be 10 and 30 seconds, respectively. -Referring to SCENARIO 15-4, suppose the supervisor constructs an X chart to see if the process is in-control.What is the center line of the chart? A) 20.00 B) 20.26 C) 21.00 D) 24.26$

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