The number of customers at a specialty meat store averages about 1600/day. The e

Question

The number of customers at a specialty meat store averages about 1600/day. The exact number varies from day to day. On Fridays before long weekends, the number of customers increases to about 3200. Which of the following statements is correct? O The increase in the number of customers before long weekends is an example of common cause variation. O The variation in number of customers on a typical day is an example of common cause variation O The increase in the number of customers before long weekends is variation that is due neither to common causes nor to special causes but is just an outlier. O The variation in the number of customers on a typical day is an example of special cause variation.

Explanation / Answer

Ans:

The variation in number of customers on a typical day is an example of common cause variation.

(second option is correct)

Some degree of variation will naturally occur in any process.Common-cause variation is the natural or expected variation in a process. Special-cause variation is unexpected variation that results from unusual occurrences. It is important to identify and try to eliminate special-causevariation.

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