Answer to Question #101868 in Statistics and Probability for Brittney Devlin

Question

The financial services call center also monitors call duration, the amount of time spent
speaking to customers on the phone. The file CallDuration contains the following data
for time, in seconds, spent by agents talking to 50 customers.
(use the following class intervals:
60 but <120; 120 but <180; 180 but <240; 240 but <300; 300 but < 360; 360 but <420; 420 but
less than 1500 )
(in Minitab, in the recode window remember to set “endpoints to include” to “both endpoints”)
a. Construct a frequency distribution and a percentage distribution .
b. Construct cumulative percentage distributions.
c. What can you conclude about call center performance if a call duration target of less
than 240 seconds is set?

Answer 1

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