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Question
suppose that we are studying the amount of time customers wait in line at the checkout at the gap and old navy. the average wait time at both stores is five minutes. at the gap, the standard deviation for the wait time is 2 minutes; at old navy the standard deviation for the wait time is 5 minutes. because old navy has a higher standard deviation, we know that there is select an answer in the wait times at old navy. overall, wait times at old navy are select an answer from the average; wait times at the gap are select an answer near the average. question help: message instructor submit question
Step1: Understand standard - deviation concept
Standard deviation measures the amount of variation or dispersion of a set of values. A higher standard deviation means more variation.
Step2: Analyze Old Navy's situation
Since Old Navy has a higher standard deviation (5 minutes compared to Gap's 2 minutes), there is more variation in the wait - times at Old Navy. And the wait - times at Old Navy are more spread out from the average.
Step3: Analyze Gap's situation
The Gap has a lower standard deviation (2 minutes), so the wait - times at the Gap are closer to the average.
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