(Answered) Question a fast-food restaurant monitors its drive-thru

Statistics

Question: A fast-food restaurant monitors its drive-thru service times electronically to ensure that its speed of service is meeting the company's goals. A sample of 28 drivethru times was recently taken and is shown here.

a. Construct a stem and leaf diagram of the speed of service times.

b. What range of time might the restaurant say is the most frequent speed of service?

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