An airline company uses a central telephone bank and a semi automated telephone process to take reservations. It has been receiving an unusually high number of customer complaints about its reservation system. The company conducted a survey of customers, asking them whether they had encountered any of the following problems in making reservations: busy signal, disconnection, poor connection, too long a wait to talk to someone, could not get through to an agent, connected with the wrong person. Suppose a survey of 744 complaining customers resulted in the following frequency tally.

Number of Complaints Complaint

184 ..........Too long a wait

10 ..........Transferred to the wrong person

85 ..........Could not get through to an agent

37 ..........Got disconnected

420 ...........Busy signal

8 ............Poor connection

Construct a Pareto diagram from this information to display the various problems encountered in making reservations.