Question Details

(solution) MM305 UNIT 9 PROJECT Name: Directions: The following software may


Assignment is attached. Unit 9 Project 


Name:

Directions:

  • The following software may be used:
    • Excel->Data Analysis
    • Excel QM
    • QM for Windows (PC only)
  • Please make sure to insert your answers, including any charts, graphs, or output, on this document.  You may be required to also upload original files from Excel or QM for Windows.
  • The calculations are not your final answer.  A summary/explanation in your own word for each question posed should be included.
  • Question 8, 9 and 10 use the States Data File to run some calculations.  Resulting output is already provided for you.  You do NOT need to run any calculations on the States Data File.
  •  Be sure to put your name on this document and save it to your computer. Upload this Word document as your Unit 7 submission in the course Drop Box.

1. Allen Machines specializes in developing weed-harvesting equipment that is used to clear small lakes of weeds.  Allen Machines is contemplating the construction of a machine that would harvest weeds on narrow rivers and waterways.  The activities and time in weeks necessary to build one of these experimental machines are shown in the table below.

Activity

Immediate Predecessors

Time in Weeks

A

none

4

B

A

3

C

B

2

D

A

4

E

A

2

F

E

2

G

B, C

2

H

D,F

1

What is the minimum possible time required for completing the project?  What is the latest possible time that Activity E may be started without delaying the completion of the project?  What is the latest finish time for Activity H?  What is/are the critical path(s)?   What is your recommendation to the president based on expected value that maximizes profits (EMV).Provide a second recommendation to the president that minimizes regret. Use a smoothing constant of ? = 0.6.

Answer:

Explanation (include software output):

Analysis of the forecasting errors indicates which forecasting constant is best in this situation?

Answer:

Explanation:


6. Johnson Construction Company is in the process of installing power lines to a large housing development. The company wants to minimize the total length of wire used, which would minimize the company?s cost. The housing development is shown below.  Each house has been numbered, and the distances between houses are given in hundreds of feet.

Explanation: We want to create the minimum spanning tree (MST) for this network since all houses need to be connected.  You can use QM for Windows to do this.

  • What do you recommend to Johnson Construction Company?

Answer:  

Explanation (including software output):


7. The storm drains in the Cedar Rapids, Iowa, have been upgraded following the devastating floods of 2008. The network of storm drains and the capacities are shown below. Determine the maximum flow (in hundreds of gallons of water per minute) from node 1 to node 5. Remember that the arc has both capacity and reverse capacity.

Explanation: You can use QM for Windows?Networks?Maximal Flow with the above information.

From Node

To Node

Fluid Flow

1

2

125

2

1

100

1

3

250

3

1

100

1

4

250

4

1

450

1

5

200

5

1

75

2

4

100

4

2

300

3

4

150

4

3

250

3

5

190

5

3

400

4

5

50

5

4

100

Answer:

Which variable has the greatest relative variation?

Answer:

What is the Null and the Alternative Hypotheses?What is your decision about the hypothesis based on the software output?Has there been a significant reduction in the national unemployment rate between January and February?


10. The Governor of a southern state has asked Kaplan Consulting to determine if the state were able to increase the percentage of its population with a Bachelor?s Degree to 45%, what might be the expected median household income based on 2000 data? Here is the output from the Regression procedure from Excel.

 

What would be the predicted median household income if the percentage of the population in the state were 45% or 45?Save your project in a location that you will remember and with your full name. When you are ready to submit your project, click on the Dropbox and complete the steps below:Click the link that says, ?Submit an Assignment.?In the ?Submit to Basket? menu, select Unit 9 Project.In the ?Comments? field include your name.Click the ?Add Attachments? button.Follow the steps listed to attach your Word Document.You should revisit the Dropbox to view any helpful feedback your instructor has and to retrieve your graded project.

Make sure that you save a copy of your submitted project.


MM305 UNIT 9 PROJECT Name:

 

Directions: The following software may be used:

 

o Excel->Data Analysis

 

o Excel QM

 

o QM for Windows (PC only)

 

Please make sure to insert your answers, including any charts, graphs, or output, on this

 

document. You may be required to also upload original files from Excel or QM for

 

Windows.

 

The calculations are not your final answer. A summary/explanation in your own

 

word for each question posed should be included.

 

Question 8, 9 and 10 use the States Data File to run some calculations. Resulting

 

output is already provided for you. You do NOT need to run any calculations on the

 

States Data File.

 

Be sure to put your name on this document and save it to your computer. Upload this

 

Word document as your Unit 7 submission in the course Drop Box. 1. Allen Machines specializes in developing weed-harvesting equipment that is used to clear

 

small lakes of weeds. Allen Machines is contemplating the construction of a machine that

 

would harvest weeds on narrow rivers and waterways. The activities and time in weeks

 

necessary to build one of these experimental machines are shown in the table below.

 

Activity

 

A

 

B

 

C

 

D

 

E

 

F

 

G

 

H Immediate Predecessors

 

none

 

A

 

B

 

A

 

A

 

E

 

B, C

 

D,F Time in Weeks

 

4

 

3

 

2

 

4

 

2

 

2

 

2

 

1 1. What is the minimum possible time required for completing the project?

 

2. What is the latest possible time that Activity E may be started without delaying the

 

completion of the project?

 

3. What is the latest finish time for Activity H?

 

4. What is/are the critical path(s)?

 

Explanation: (Please include Gantt Chart and/or Network Graph): 1 MM305 UNIT 9 PROJECT

 

2. The following is the activity and associated costs for the renovation of the local high school

 

football stadium. The times are in weeks.

 

Explanation: You can enter the above information into QM for Windows->Project

 

Management->Cost Budgeting. Activity

 

A

 

B

 

C

 

D

 

E

 

F

 

G

 

H Immediate Predecessor

 

A

 

B

 

B

 

C, D

 

C, D

 

E, F Time

 

8

 

4

 

6

 

2

 

3

 

7

 

5

 

1 Cost ($)

 

20,000

 

12,000

 

15,000

 

15,000

 

10,000

 

50,000

 

35,000

 

1,000 1. What is the critical path and total time required for this project?

 

Answer:

 

Explanation: (include Gantt Chart and/or Network Graph): 2. How much of the total (cumulative) budget would be spent in Week 8 (Period 8) with the

 

earliest start budget?

 

Answer: Explanation (include cost budgeting table): 2 MM305 UNIT 9 PROJECT

 

3. Precision Manufacturing has a government contract to produce stainless steel rods for use in

 

military aircrafts. Each rod is required to be 35 millimeters in diameter. Each hour, random

 

samples of size n = 5 rods are measured to check process control. Four hours of

 

observations yielded the following:

 

Explanation: You are looking at the control limits for the variable, average diameter. You can

 

use Excel QM or QM for Windows->Quality Control->x-bar and r-charts. Time

 

9 A.M.

 

10 A.M.

 

11 A.M.

 

Noon Rod 1

 

34.5

 

35.1

 

38.9

 

25 Rod 2

 

34.9

 

34.7

 

35

 

35.2 Diameter

 

Rod 3

 

37.9

 

33

 

37.9

 

32.1 Rod 4

 

36

 

35.4

 

38.3

 

38.1 Rod 5

 

35.9

 

34.9

 

36.5

 

35 1. Construct the xbar-chart and the R-chart.

 

Please include charts below: 2. Is the process in control? xbar chart UCL = R-chart UCL = xbar chart LCL = R-chart LCL = Explanation: 3 MM305 UNIT 9 PROJECT

 

4. Modern Electronics specializes in manufacturing modern electronic components. It also

 

builds the equipment that produces the components. Modern Electronics is considering

 

building a new facility but the estimated profits would be impacted by the type of market that

 

develops. The probability for a strong market is 0.3; for a fair market is 0.3; and for a poor

 

market is 0.4. You are responsible for advising the president of Modern Electronics on the

 

type facility that should be built or to not build a facility at all. The table shows the estimated

 

profits under each market and for each size facility.

 

Explanation: You can use QM for Windows->Decision Analysis->Decision Table with the above

 

information.

 

Strong Market Estimated Profits

 

Fair Market Poor Market Build a large facility 30,000 25,000 -20,000 Build a medium-size facility 27,500 25,000 -10,000 Build a small facility 15,000 12,500 -1000 Do not build a facility 0 0 0 1. What is your recommendation to the president based on expected value that maximizes

 

profits (EMV).

 

Answer:

 

Explanation (include expected monetary value):

 

Software Output: 2. Provide a second recommendation to the president that minimizes regret.

 

Answer:

 

Explanation (include expected monetary value):

 

Software Output: 4 MM305 UNIT 9 PROJECT

 

5. Consulting income at Kaplan Associates for the period February ? July is shown in the table

 

below. Assume that the initial forecast for February is $90,000. Use Exponential

 

smoothing to forecast August?s income.

 

Explanation: You can use Excel QM?Forecasting?Exponential with the above information. Month

 

February

 

March

 

April

 

May

 

June

 

July Income ($1,000)

 

90.0

 

88.5

 

74.8

 

91.7

 

91.3

 

92.8 1. Use a smoothing constant of ? = 0.1.

 

Answer: Explanation (include software output): 2. Use a smoothing constant of ? = 0.6.

 

Answer: Explanation (include software output): 3. Analysis of the forecasting errors indicates which forecasting constant is best in this

 

situation?

 

Answer: Explanation: 5 MM305 UNIT 9 PROJECT

 

6. Johnson Construction Company is in the process of installing power lines to a large housing

 

development. The company wants to minimize the total length of wire used, which would

 

minimize the company?s cost. The housing development is shown below. Each house has

 

been numbered, and the distances between houses are given in hundreds of feet.

 

Explanation: We want to create the minimum spanning tree (MST) for this network since all

 

houses need to be connected. You can use QM for Windows to do this. 1. What do you recommend to Johnson Construction Company?

 

Answer: Explanation (including software output): 6 MM305 UNIT 9 PROJECT

 

7. The storm drains in the Cedar Rapids, Iowa, have been upgraded following the devastating

 

floods of 2008. The network of storm drains and the capacities are shown below. Determine

 

the maximum flow (in hundreds of gallons of water per minute) from node 1 to node 5.

 

Remember that the arc has both capacity and reverse capacity.

 

Explanation: You can use QM for Windows?Networks?Maximal Flow with the above

 

information. From

 

Node

 

1

 

2

 

1

 

3

 

1

 

4

 

1

 

5

 

2

 

4

 

3

 

4

 

3

 

5

 

4

 

5 To Node Fluid Flow 2

 

1

 

3

 

1

 

4

 

1

 

5

 

1

 

4

 

2

 

4

 

3

 

5

 

3

 

5

 

4 125

 

100

 

250

 

100

 

250

 

450

 

200

 

75

 

100

 

300

 

150

 

250

 

190

 

400

 

50

 

100 Answer:

 

Explanation (include software output): 7 MM305 UNIT 9 PROJECT

 

8. From the States Data Set the following output for College and for the Bachelors was

 

created. 1. Which variable has the greatest relative variation?

 

Answer: Explanation (including calculations): 8 MM305 UNIT 9 PROJECT

 

9. You are a consultant working for Kaplan Consulting. The U.S. Department of Labor has

 

requested assistance in evaluating the impact of economic stimulus on the unemployment

 

rate. From the States Data Set the following t test was conducted to answer the question:

 

?Has there been a significant reduction in the national unemployment rate between

 

January and March??

 

Output from PhStat2: Output from Excel-DataAnalysis: 1. What is the Null and the Alternative Hypotheses?

 

Ho:

 

Ha:

 

2. What is your level of alpha (?)? 3. What is your decision about the hypothesis based on the software output?

 

4. Has there been a significant reduction in the national unemployment rate between

 

January and February? 9 MM305 UNIT 9 PROJECT

 

10. The Governor of a southern state has asked Kaplan Consulting to determine if the state

 

were able to increase the percentage of its population with a Bachelor?s Degree to 45%, what

 

might be the expected median household income based on 2000 data? Here is the output from

 

the Regression procedure from Excel. 1. What would be the predicted median household income if the percentage of the

 

population in the state were 45% or 45?

 

Answer:

 

Explanation (include all calculations): 10 MM305 UNIT 9 PROJECT Submitting Your Project Save your project in a location that you will remember and with your full name. When

 

you are ready to submit your project, click on the Dropbox and complete the steps below:

 

Click the link that says, ?Submit an Assignment.?

 

In the ?Submit to Basket? menu, select Unit 9 Project.

 

In the ?Comments? field include your name.

 

Click the ?Add Attachments? button.

 

Follow the steps listed to attach your Word Document.

 

You should revisit the Dropbox to view any helpful feedback your instructor has and to retrieve your graded project.

 

Make sure that you save a copy of your submitted project. 11

 


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