The equipment installed group at globus enterprises is regarding to make the cost estimate to find out how much it will cost to install the back up generator at government laboratory facility.ver the years, this group has carried out more than 100 such installations and has developed the database reflecting past experience. Data on distribution of cost for design work, building effort and testing effort is provided in table1
|
|
Cheapest ($/%)
|
Usual ($/%)
|
Expensive($/%)
|
|
Design
|
9000/30
|
10000/40
|
12000/30
|
|
Build
|
60000/20
|
70000/60
|
80000/20
|
|
Test
|
18000/20
|
20000/50
|
24000/30
|
|
The data in the table picture the cost of an effort and the percentage of times this cost is achieved for example, 30% of the time ,design cost $9000;40% of the time it cost $10,000;30% of the time it cost $12,000
|
|
00
|
16
|
45
|
84
|
18
|
|
83
|
28
|
82
|
36
|
91
|
|
95
|
14
|
80
|
68
|
34
|
|
54
|
55
|
13
|
20
|
70
|
|
57
|
68
|
61
|
37
|
30
|
|
09
|
81
|
24
|
55
|
21
|
Two digit randowm numbers
Roughly determine the probability that project will cost moe than $105,000?