DownloadtheCall Center Waiting Timedatabase.

Each row in the database corresponds to a different call. Column variables are as follows.

• ProtocolType: indicates protocol type, either PT or PE
• QueueTime: Time in Queue, in seconds
• ServiceTime: Service Time, in seconds

Performa test of hypothesis to determine whether the average TiQ is lower than the industry standard of 2.5 minutes (150 seconds). Use a significance level =0.05.