Suppose the Hourly Dollar Amount of Food Sold by a Burger

Short Answer

Suppose the hourly dollar amount of food sold by a Burger King franchise follows an approximately mound-shaped distribution with a mean sales level of $400 per hour and a standard deviation of $60 per hour.
a. What percentage of the working hours does this Burger King franchise sell between $280 and $520 worth of food per hour?
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b. Suppose yesterday, during a one-hour period, this Burger King franchise had sales at the 84th percentile. What dollar sales figure does this represent?
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