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your company takes orders over the phone. the company's average call time is 4.6 minutes. the
graph below shows 4 calls and the difference between the call time and the company's average call
time. for these 4 calls, what is the mean difference between the call times and the company's average
call time, rounded to the nearest 0.1 minute?
*
*
*
(note: a negative difference indicates the call is shorter than the average.)
*
*
difference between call time and
company average call time
(negative values indicate calls shorter
than company average.)
4.79
call 3
minutes
0.68
call 4
call 2
call 1
1.55
support
2.32