Reese\'s Cups are a very tasty treat. Which of the following changes in the outp

Question

Reese's Cups are a very tasty treat. Which of the following changes in the output of the Reese's Cup production process are detectable with an R chart?

The number of mini-Reese's cups in each bag (coming off of a packaging line) is decreasing

The weight of the average cup in a batch is increasing.  

In a sample of 200 mini Reese's cups, the number of cups that are improperly wrapped in foil has spiked

The variation in weight from cup to cup (e.g. the difference between the lightest and heaviest cup in a batch) is increasing

The number of mini-Reese's cups in each bag (coming off of a packaging line) is decreasing

The weight of the average cup in a batch is increasing.  

In a sample of 200 mini Reese's cups, the number of cups that are improperly wrapped in foil has spiked

The variation in weight from cup to cup (e.g. the difference between the lightest and heaviest cup in a batch) is increasing

Explanation / Answer

THEE R CHART HELPS IN FINDING THE VARIATION IN THE SAMPLES TESTED THEREFORE THE ANSWER IS

The variation in weight from cup to cup (e.g. the difference between the lightest and heaviest cup in a batch) is increasing

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