Problem:
A Small renovation of a Hard Rock Café gift shop has six activities (in hours). For the following estimates of a, m, and b, calculates the expected time and the standard deviation of each activity:
|
Activity
|
a
|
m
|
B
|
|
A
|
11
|
15
|
19
|
|
B
|
27
|
31
|
41
|
|
C
|
18
|
18
|
18
|
|
D
|
8
|
13
|
19
|
|
E
|
17
|
18
|
20
|
|
F
|
16
|
19
|
22
|