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ASQ CSSBB Exam - Topic 1 Question 39 Discussion

An x-bar control chart has been established with control limits of 3.245 and 3.257, n = 5. An engineer collects the following sample and plots the average on the control chart: 3.257, 3,256, 3. 258, 3.259
C) the engineer misused the control chart
A) the process is out of control
B) the process is not out of control
D) the control limits are incorrect

ASQ CSSBB Exam - Topic 1 Question 39 Discussion

Actual exam question for ASQ's CSSBB exam
Question #: 39
Topic #: 1
[All CSSBB Questions]

An x-bar control chart has been established with control limits of 3.245 and 3.257, n = 5. An engineer collects the following sample and plots the average on the control chart: 3.257, 3,256, 3. 258, 3.259

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Suggested Answer: C

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Lilli
7 months ago
Yup, looks like the engineer needs to check that chart again!
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Krystal
7 months ago
n = 5 means the averages should be closely monitored.
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Talia
8 months ago
Wait, are we sure the control limits are right?
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Fidelia
8 months ago
Totally agree, that's definitely out of control!
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Ronny
8 months ago
The average is 3.259, which is above the upper control limit.
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Mohammad
8 months ago
Hmm, I'm a bit confused here. The question mentions OAuth, but it's not clear to me how that relates to the different options. I'll need to think this through carefully.
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Margery
8 months ago
Hmm, I'm not totally sure about this one. I know default values are used to display some kind of information, but I'm not confident which specific purpose is correct. I'll have to think this through carefully.
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Alonso
8 months ago
Hmm, those numbers look tricky. I'll make sure to square the differences from the mean carefully.
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