Consider Process Data Consisting of the Amounts of Potato Chips $\bar { x }$

question 44

Multiple Choice

Consider process data consisting of the amounts of potato chips (in ounces) in randomly selected bags of chips. The process is to be monitored with $\bar { x }$ control charts based on samples of 50 bags randomly selected each day for 15 consecutive days of production. What does $\bar { x }$ denote?

• A) The mean of the standard deviations for the 15 days.
• B) The mean of the ranges for the 15 days.
• C) The mean of 50 bags.
• D) The mean of all 15 sample means.

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