MAT 510 Week 4 Homework Assignment 4

MAT510 Homework Assignment 4 Strayer

Due in Week 4 and worth 30 points

Discuss one (1) project where you used a problem-solving approach to address what turned out to be common-cause variation, or where you used a process improvement approach to deal with a special cause.

If you do not have a personal experience that echoes either of these situations, you may use Internet to search for a case that reflects either of these situations.

Examples:

• one’s personal investment strategy since 2008


• reducing waiting times at the local hospital or emergency room


• reducing difficulties trying to connect to a Wi-Fi Internet provider

Answer the following questions in the space provided below:

1. 1.     Describe the experience in the project.


2. 2.     What were the solutions used to address the problem?


3. 3.     Was the case you described a special-cause or common-cause?


4. 4.     Do you feel the solution or approach used appropriate for the cause?


5. 5.     What would you do if you could do it again?


6. 6.     What conclusions can you draw from the problem-solving or process-improvement techniques?

Note: You may create and / or make all necessary assumptions needed for the completion of this assignment. In your original work, you may use aspects of existing processes from either your current or a former place of employment. However, you must remove any and all identifying information that would enable someone to discern the organization(s) that you have used.

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MAT 510 Week 4 Homework Assignment 4

MAT 510 Week 1 Homework Assignment 1

MAT510 Homework Assignment 1 Strayer

Due in Week 1 and worth 30 points

Describe a work task, a hobby, or another activity that you regularly do, and sequentially list the various actions you take in order to complete this activity. Consider the complexity of your list and the amount of steps required to complete the activity.

Answer the following questions in the space provided below:

1. Differentiate the main actions between doing and improving your activities.


2. Determine the overall manner in which variation has affected your activities.

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MAT 510 Week 1 Homework Assignment 1

MAT 510 Week 2 Homework Assignment 2

MAT510 Homework Assignment 2 Strayer

Due in Week 2 and worth 30 points

Answer the following questions in the space provided below:

Explain the importance of variation to health-care organizations and answer the following questions.

1. a.     What might be the key processes for health-care organizations?


2. b.     key processes of health-care organizations What are the potential common causes of variation that would have an impact on the?


3. c.     What special causes might be more important than the others?


4. d.     How might health-care organizations’ business environment be dynamic and change over time?

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MAT 510 Week 2 Homework Assignment 2

MAT 510 Week 3 Homework Assignment 3

MAT510 Homework Assignment 3 Strayer

Due in Week 3 and worth 30 points

The following data consists of the actual time used and potential (the best time possible for this review process) to complete each step in the review process. The actual times are based on the review of 30 projects. The potential times are subjective engineering judgment estimates.

Table: Basic Data Review for Construction Project Equipment Arrangement

			Cycle Time (hours)
Step	Description	Actual	Potential	Difference
1	Read basic data package	4	4	—
2	Write, type, proof, sign, copy, and distribute cover letter	21.9	0.5	21.4
3	Queue	40	0	40
4	Lead engineer calls key people to schedule meeting	4	0.25	3.75
5	Write, type, proof, sign, copy, and distribute confirmation letter	25.4	2.1	23.3
6	Hold meeting; develop path forward and concerns	4	4	—
7	Project leader and specialist develop missing information	12	12	—
8	Determine plant preferred vendors	12	12	—
9	Review notes from meeting	12	12	—
10	Resolve open issues	106	104	2
11	Write, type, proof, sign, copy, and distribute basic data acceptance letter	26.5	0.25	26.25
	Totals	267.8	151.1	116.7

Use the data in the table above and answer the following questions in the space provided below:

1. What are the sources of value-added and non-value-added work in this process?


2. Where are the main opportunities to improve the cycle time of this process, with respect to both actual time used and the potential best times? What strategy would you use?


3. Step 10: Resolve Open Issues required 104 hours (potential) versus 106 hours (actual). Is there an OFI here? Why or why not? If so, how would you attack it?


4. What do you think are the most difficult critical issues to deal with when designing a sound cycle time study such as this one?

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MAT 510 Week 3 Homework Assignment 3

MAT 510 Week 5 Midterm Exam 2 Sets

MAT510 Week 5 Midterm Exam 2 Summer 2015 and Fall 2015

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MAT 510 Week 5 Midterm Exam 2 Sets

MAT 510 Week 6 Homework Assignment 5

MAT510 Homework Assignment 5 Strayer

Due in Week 6 and worth 30 points

The data in below table lists country code and the order to remittance (OTR) time for hardware / software installations for the last 76 installations (from first to last). OTR is the time it takes from an order being placed until the system is installed and we receive payment (remittance). Because this company does business internationally, it also notes the country of installation using a country code. This code is listed in the first column.

Table: Country Code and OTR Cycle Time for Software Systems Installation

Country Code	Cycle Time	Country Code	Cycle Time
1	20	5	29
1	24	6	40
1	46	7	157
1	26	8	19
14	38	5	24
1	15	1	81
1	15	7	53
17	23	7	26
1	31	1	28
1	31	1	34
6	64	1	34
5	29	7	50
5	44	1	52
1	32	1	19
1	15	1	44
7	11	14	150
7	14	7	29
1	89	17	23
17	41	6	79
7	41	17	13
1	36	6	32
8	43	7	61
17	21	8	42
8	28	8	46
7	18	7	88
8	47	14	24
6	26	7	7
6	47	1	33
5	9	5	129
7	42	17	41
5	5	17	43
6	27	14	42
6	27	14	42
1	33	7	53
7	44	7	53
1	21	7	48
1	22	5	21
1	50	1	19

 Use the date in table above and answer the following questions in the space provided below:

1. Does the OTR time appear to be stable? Why or why not?


2. If you were to use a control chart to evaluate stability, which chart would you use? Why?


3. What can you learn about the distribution of the installation process?


4. Does it appear that the country has an impact on installation time? Why or why not?

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MAT 510 Week 6 Homework Assignment 5

MAT 510 Week 7 Homework Assignment 6

MAT510 Week 7 Homework Assignment 6 Strayer

Due in Week 7 and worth 30 points

The data in the table below is from a study conducted by an insurance company to determine the effect of changing the process by which insurance claims are approved. The goal was to improve policyholder satisfaction by speeding up the process and eliminating some non-value-added approval steps in the process. The response measured was the average time required to approve and mail all claims initiated in a week. The new procedure was tested for 12 weeks, and the results were compared to the process performance for the 12 weeks prior to instituting the change.

Table: Insurance Claim Approval Times (days)

Old Process			New Process
Week	Elapsed Time		Week	Elapsed Time
1	31.7		13	24
2	27		14	25.8
3	33.8		15	31
4	30		16	23.5
5	32.5		17	28.5
6	33.5		18	25.6
7	38.2		19	28.7
8	37.5		20	27.4
9	29		21	28.5
10	31.3		22	25.2
11	38.6		23	24.5
12	39.3		24	23.5

Use the date in table above and answer the following questions in the space provided below:

1. What was the average effect of the process change? Did the process average increase or decrease and by how much?


2. Analyze the data using the regression model y = b0 + b1x, where y = time to approve and mail a claim (weekly average), x = 0 for the old process, and x = 1 for the new process.


3. How does this model measure the effect of the process change?


4. How much did the process performance change on the average? (Hint: Compare the values of b1 and the average of new process performance minus the average of the performance of the old process.)

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MAT 510 Week 7 Homework Assignment 6