# Homework

Topics: Injection molding, Variable cost, Decimal Pages: 114 (19979 words) Published: December 1, 2012
+http://connect.mcgraw-hill.com/class/t_prater_fall_2011_-_tr_530 2.06  units per hour
3.69
3.5
Requirement 1:
(a) Calculate partial labor and capital productivity figures for the parent and subsidiary. (Round your answers to 2 decimal places.)

U.S. LDC
Labor productivity 5.00 1.33
Capital productivity 1.67 4.00

--------------------------------------------------------------------------------
(b) Do the results seem surprising?

Yes
Requirement 2:
(a) Compute the multifactor productivity figures for labor and capital together. (Round your answers to 2 decimal places.)

U.S. LDC
Multifactor productivity 1.25 1.00

--------------------------------------------------------------------------------
(b) Are the results better?

Yes
Requirement 3:
Calculate raw material productivity figures (units/\$ where \$1 = FC 10).

U.S. LDC
Raw material productivity 5.00 10.00
-------------------------------------------------

5.
award:
10 out of
10 points

Problem 2-8

A retail store had sales of \$45,000 in April and \$56,000 in May. The store employs eight fulltime workers who work a 40-hour week. In April the store also had seven part-time workers at 10 hours per week, and in May the store had nine part-timers at 15 hours per week (assume four weeks in each month).|

Required:|
Using sales dollars as the measure of output, what is the percentage change in productivity from April to May? (Round your answer to 2 decimal places. Omit the "%" sign in your response.)|
Percentage change in productivity| 6.67  %  |

Worksheet| Difficulty: Medium|  |
Problem 2-8| Learning Objective: 02-05 | |

1.
award:
10 out of
10 points

Problem 10-4

Schedule the following activities using CPM:|

ACTIVITY| IMMEDIATE PREDECESSOR| TIME (WEEKS)|
A|                     —| 1|
B|                     A| 4|
C|                     A| 3|
D|                     B| 2|
E|                     C, D| 5|
F|                     D| 2|
G|                     F| 2|
H|                     E, G| 3|
|

(b)| What is the critical path?|
|  |
| A-B-D-E-H |

(c)| How many weeks will it take to complete the project?|

Number of weeks| 15   |

(d)| Which activities have slack?|
|  |
| C, F, G |

2.
award:
10 out of
10 points

Problem 10-8

The following table represents a plan for a project:|

|  | Times (Days)|
Job No.| Predecessor
Job(s)| a| m| b|
1     |              –| 2| 3| 4    | 2     |              1| 1| 2| 3    | 3     |              1| 4| 5| 12    | 4     |              1| 3| 4| 11    | 5     |              2| 1| 3| 5    | 6     |              3| 1| 2| 3    | 7     |              4| 1| 8| 9    | 8     |              5, 6| 2| 4| 6    | 9     |              8| 2| 4| 12    | 10     |              7| 3| 4| 5    | 11     |              9, 10| 5| 7| 8    | |

(b)| Indicate the critical path.|

1-3-6-8-9-11 |

(c)| What is the expected completion time for the project? (Round your answer to 2 decimal places.)|

Expected completion time| 26.83    |

(d)| You can accomplish any one of the following at an additional cost of \$1,500 and if you will save \$1,000 for each day that the earliest completion time is reduced, which action, if any, would you choose?|

(d-1)| Reduce job 5 by two days.|

No |

(d-2)| Reduce job 3 by two days.|

No |

(d-3)| Reduce job 7 by two days.|

No |

(e)| What is the probability that the project will take more than 30 days to complete? (Round your answer to 3 decimal places.)|

Probability| 0.088    |

-------------------------------------------------
Top of Form
Problem 10-11
[The...