The Following Data Reflect the Number of Customers Who Return

question 78

Multiple Choice

The following data reflect the number of customers who return merchandise for a refund on Monday. Note these data reflect the population of all 10 Mondays for which data are available. Assume that this same exact pattern of data were replicated for the next ten days. How would this affect the standard deviation for the new population with 20 items?

• A) The standard deviation would be doubled.
• B) The standard deviation would be cut in half.
• C) The standard deviation would not be changed.
• D) There is no way of knowing the exact impact without knowing how the mean is changed.

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