A Manager Wants to Build 3-Sigma X-Bar Control Limits for a Process

question 100

Multiple Choice

A manager wants to build 3-sigma x-bar control limits for a process. The target value for the mean of the process is 10 units, and the standard deviation of the process is 3. If samples of size 9 are to be taken, what will be the upper and lower control limits, respectively?

• A) 19 and 1
• B) 16 and 4
• C) 13 and 7
• D) 4 and 16
• E) 7 and 13

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