a fast food restaurant recently completed a study of the time to complete each order. it found that the average time to complete an order was 5.0 minutes with a standard deviation of 45 seconds (0.75 minutes).1)what percent of orders are expected to take longer than 5.5 minutes to fill?2)what percent of orders can be expected to be compleated in less than or equill to 4 minutes?3)if we were to take the averages of the times to serve 20 customers, what would the expected average and standered deviation be?4) determine the 95% range for the means of the times to serve 20 customers.




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