QUESTION: 105

A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.Find the control limits for a median chart.

12.52 and 12.72
12.54 and 12.70
0.02 and 0.33
none of the above

Answer(s): A

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A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.A customer requires that SPC charts be done on their forms which have spaces for only 5 readings per sample. In preparation for calculating the new control limits the following question is asked, “Will the new average range be larger or smaller than the current average range?”. The answer is:

yes
no
maybe
smaller
larger
same size
none of the above

Answer(s): D

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QUESTION: 107

A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.A customer requires that SPC charts be done on their forms which have spaces for only 5 readings per sample. What should be the UCL and LCL for tbe new averages chart?

12.53 and 12.71
12.58 and 12.66
11.61 and 13.63
none of the above

Answer(s): A

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QUESTION: 108

The following is a set of individual measurements:
3 5 4 5 6 3 4 3 2 4 5 6 5 7 6 4 5 5 8 7 6 6 7 7 4
Find the control limits for the individuals chart.

.7 and 11.2
1.6 and 8.6
2.7 and 7.5
none of the above

Answer(s): D

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