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Q1) Given following activities and precedence's, draw ADM/PERT or PDM/CPM diagram:
Activity
Immediate Predecessor
A
-
B
C
D
A,B
E
F
G
D,F
H
E,G
Q2) Given estimated times below and network
a
m
b
6.5
7.5
14.5
8.5
10.5
12.5
2.5
3.5
4.5
5.5
9.5
Determine the critical path probability that project will be completed within:
a) 21 days?
b) 22 days?
c) 25 days?
a) Find the marginal density of Y. b) Find E(X) HINT: What is E (X|Y=y) ?
What is the probability that he completed the assignments?
What would you recommend Taylor do to cut back its labor cost? (Illustrate using an ABC plan.)
It has been claimed that women live longer than men; however, men tend to be older than their wives. Ages of sixteen husbands and wives from England were obtained. These data should be analyzed with a
Find the probability of failure of system for any 4 hours of operation?
A busy landscaping supplies company sells wood chips for garden mulch. The mulch is sold by the cubic metre and delivered to households in a small truck.
The one-sample t statistic has the value t = -1.68. What do we know about the P -value of this test?
Create a frequency table for the total number of people that prefer each type of music:
Fast Service Truck Lines uses the Ford Super Duty F-750 exclusively. Management made a study of the maintenance costs and determined the number of miles traveled during the year followed the normal distribution. The mean of the distribution was 60..
What does r 2 of .73 tell us? Is this a strong or weak correlation? How can you tell?
More than 13 successes in 19 trials with a 40 percent chance of success. (Round the answer to 4 decimal places.) Fewer than 7 successes in 15 trials with a 40 percent chance of success. (Round the answer to 4 decimal places.)
Another day, it took Eric only 12 minutes to get to work. Using the same formula, determine the z value. Is it positive or negative? Explain why it should be positive or negative.
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