Upper & lower limits for R chart are -
LCL = D3
UCL = D4
Where, - average of all sample ranges,
D3 & D4 are the constants calculated from the table provided below. Here, supervisor selected randomly 5 individuals per hour, so we take value corresponding to 5 of D3 & D4.
From the given table -
We have -
From the table - D3 = 0 & D4 = 2.114
So, control limits for R chart are -
LCL = D3 = 020.9 = 0
UCL = D4 = 2.11420.9 = 44.1826 44.18
So, control limits for R chart are (0, 44.18).
Option A is correct.
1 QUESTION 11 10)-12) A factory supervisor is concerned that the time it takes workers to...
2 10-12) 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. Hour x R 1 18.4 30 16.9 27 3 14.0 25 21.2. 25 5 21.0 24 33.0 19.3 8 15.8 9 20.0 12...
QUESTION 10 10)-12) 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. Hour B 1 18.4 30 2 16.9 27 3 140 25 4 21.2 25 5 21.0 24 6 33.0 23 7 193...
1 QUESTION 11 10)-12) 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. Hour X B 18.4 30 2 16.9 27 3 25 21.2 25 21.0 24 6 33.0 23 193 18 15.8 14...
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. Hour R 1 18.4 30 2 16.9 27 3 14.0 25 4 21.2 25 5 21.0 24 6 33.0 23 7 19.3 18 8 15.8...
QUESTION 10 10)-12) 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. Hour X R 1 18.4 30 2 16.9 27 3 14.0 25 4 21.2 25 5 21.0 6 33.0 23 7 19.3...
QUESTION 11 10)-12) 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. Hour X R 1 18.4 30 2 16.9 27 3 14.0 25 4 21.2 25 5 21.0 24 6 33.0 23 7...
QUESTION 10 10-12) A factory supervisor is concerned that the time 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. Hou X 1 18.4 30 2 16.9 27 3 14.0 25 4 21.2 25 5 21.0 24 6 33.0 23 7 19.3 18...
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