Problem 7-17
Call-Nowait handling time
Descriptive Statistics Using Excel Functions
Data Sorted data
16.5 4.3 Mean 6.0160
27.3 4.6 Median 6.2 By inspection of sorted data
10 7.1 5.9
11 6.5 6.0
12 6.2 6.1
13 7.2 6.2
14 7.4 6.2
15 4.6 6.3
16 5.0 6.4
17 4.3 6.5
18 6.9 6.5
19 6.1 6.6
20 4.7 6.7
21 5.5 6.9
23 6.4 7.2
24 6.3 7.3
25 6.2 7.4
35.5 4.7 Mode 5,5;6.2;6.5 By inspection of sorted data (tri-modal)
45.1 4.8
55.9 5.0 Range 3.1
66.0 5.1 Variance (pop.) 0.7701
76.6 5.5 Variance (sampl.) 0.8022
84.8 5.5 Stnd Dev (pop.) 0.8776
95.6 5.6 Stnd Dev (sampl.) 0.8957