Strayer bus515 week 8 assignment

Week 8 Chapter 11 & 16
See attachments
Problem 6
The Arkade Company has decided to use a 15 percent allowance factor based on job time. Calculate the standard time for each work element and for the total job. The frequency equals 1 for all work elements.

(Round your answers to 3 decimal places, the tolerance is +/-0.002.)
Work Element Mean Observed Time (minutes) Performance Rating Factor ST
1 1.20 0.95
2 1.00 0.85
3 0.80 1.10
4 0.90 1.10

STjob =

Problem 8
The Arkade Company is considering switching to a 15 percent allowance based on time worked. Calculate the new standard time for each work element and for the total job. The frequency equals 1 for all work elements.

(Round your answers to 3 decimal places, the tolerance is +/-0.001.)
Work Element Mean Observed Time (minutes) Performance Rating Factor ST
1 1.20 0.95
2 1.00 0.85
3 0.80 1.10
4 0.90 1.10

STjob =

Problem 10
The Arkade Company used a 15 percent allowance factor based on job time and 15 percent allowance based on time worked.

What allowance factor is better when all of the jobs an employee does are similar and have the same allowance factor? (Job Time or Time Worked)

Compare standard times and units produced per day based on both allowance factors and decide which of them provides the best result. (Job Time or Time Worked)



Problem 4
Using the following project information, choose the right network diagram.
Activity Optimistic Time
Estimate(weeks) Most Likely Time
Estimates (weeks) Pessimistic Time
Estimates (weeks) Immediate
Predecessor(s)

A 3 6 9 none
B 3 5 7 A
C 4 7 12 A
D 4 8 10 B
E 5 10 16 C
F 3 4 5 D,E
G 3 6 8 D,E
H 5 6 10 F
I 5 8 11 G
J 3 3 3 H,I


See attachment #3 for answer choices




Problem 6

Using the following project information, calculate the variance for each of the project activities.
Activity Optimistic Time
Estimate(weeks) Most Likely Time
Estimates (weeks) Pessimistic Time
Estimates (weeks) Immediate
Predecessor(s)

A 3 6 9 none
B 3 5 7 A
C 4 7 12 A
D 4 8 10 B
E 5 10 16 C
F 3 4 5 D,E
G 3 6 8 D,E
H 5 6 10 F
I 5 8 11 G
J 3 3 3 H,I

(Round your answers to 3 decimal places, the tolerance is +/-0.001.)

Activity Variance

A

B

C

D

E

F

G

H

I

J





Problem 8

Using the following project information
Activity Optimistic Time
Estimate(weeks) Most Likely Time
Estimates (weeks) Pessimistic Time
Estimates (weeks) Immediate
Predecessor(s) Variance Expected Time
(weeks)

A 3 6 9 none 1.000 6.00
B 3 5 7 A 0.444 5.00
C 4 7 12 A 1.778 7.33
D 4 8 10 B 1.000 7.67
E 5 10 16 C 3.361 10.17
F 3 4 5 D,E 0.111 4.00
G 3 6 8 D,E 0.694 5.83
H 5 6 10 F 0.694 6.33
I 5 8 11 G 1.000 8.00
J 3 3 3 H,I 0.000 3.00

The critical path is A-C-E-G-I-J.

(a) Calculate the probability that the project will be completed in 38 weeks.

P (project ? 38) =

(b) Calculate the probability that the project will be completed in 42 weeks.

P (project ? 42) =

(Round your answers to 3 decimal places, the tolerance is +/-0.005.)