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Lunch break: In a recent survey of 621working Americans ages 25-34, the average weekly amount spent...

Lunch break: In a recent survey of 621working Americans ages 25-34, the average weekly amount spent on lunch as $45.92 with standard deviation

$2.68. The weekly amounts are approximately bell-shaped.

(b) Estimate the percentage of amounts that were greater than $48.60. Round the answer to one decimal place.

math   Statistics-And-Probability   
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