Oregon DSC 335 Chapter 4· Process Analysis PROBLEMS Question 180 to Question 187

Oregon DSC 335 Chapter 4· Process AnalysisPROBLEMS    Question 180 to Question187
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180.
An
existing insurance application process requires manual keying of three
different forms by a team of data entry operators. The three forms’ input times
appear in the following table along with the numbers of each type of form
anticipated for the coming year. A proposed refinement in the process would
reduce the number of forms but make each slightly longer. This would be
combined with a search of public records on the World Wide Web as necessary.
These times and quantities appear in the lower half of the table. If the labor
rate for the data entry operators is the same, which method is preferable?

Time to Input

Quantity

rm

(minutes)

(forms/year)

t A – Existing Method

3

1,200,000

t B – Existing Method

3

1,200,000

t C – Existing Method

4

1,100,000

art A – Proposed Method

4

1,200,000

art B – Proposed Method

4

1,200,000

Web
Search – Proposed Method

2

650,000

Chapter 4·
Process Analysis

181.
A
discount store is experiencing an unacceptable number of dissatisfied customers
leaving from the checkout process. Information from customer complaints about
the checkout process was collected and is found in the following table.
Construct a Pareto chart to identify the significant problems.
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Problem Type

Total

Problems

Cashier
slow

15

Price check required

9

Line too long

22

Cashier unfriendly

4

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Chapter 4·
Process Analysis

182.
Because
a telephone customer service center has experienced several problems, it has
begun to analyze the data from customer complaints. The first step was to
construct the following table. Use this data to build a Pareto chart to help
identify the “vital few” problems.

Process Failure

Total

Failures

Person not available

5

Incorrect information given

12

Phone line busy

7

Long delay

39

Phone tree confusing

20

People unfriendly

7

Chapter 4·
Process Analysis

183.
The
semester project came back from the copy store and to her horror, the project
leader has just noticed that the left side y-axis of a key Pareto chart was cut
off due to a printing error. The bar chart component uses the missing left side
y-axis and the cumulative percentage line on the Pareto chart uses the right
side y-axis. The project leader is pretty sure that the total number of
observations in all combined categories is 200. Can you help her develop
estimates of the counts for each of the five categories?
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Chapter 4·
Process Analysis

184.
Develop
a process chart for a manual car wash.

185.
Develop
a process chart for one of the following:

1) Researching and writing a paper
for your Operations Management class;

2) Managing, developing and
completing a team project for a Finance (or other) class;

3) Planning for your job interview
process as you approach graduation (including resume preparation, developing
interview skills, researching company backgrounds, etc.)

4) Studying and developing a process
improvement plan for a business or other process you are familiar with (e.g.,
fast food restaurant, obtaining tickets to a university-sponsored event, dry
cleaners, book purchases for next term, and the like)

Chapter 4·
Process Analysis

186.
A
pilot work study has been conducted on a new operation with four work elements.
The following times, in seconds, were obtained using a time study.

Observations

Element

1

2

3

4

5

RF

1

11

15

10

14

15

1.10

2

26

30

25

29

30

1.05

3

11

8

7

13

11

0.85

a.
What
is the normal time for this operation?

b.
If
an allowance of 20 percent is used, what is the standard time for this task?

187.
An
undergraduate business student studies diligently in the library late in the
term in anticipation of an outstanding performance on her final exams. She asks
a friend to spy on her at random intervals to determine what percentage of time
she is actually studying. Over the course of three days, her friend records the
following observations:

Times

Times
Not

Observation Period

Studying

Studying

Observations

Monday

19

4

23

Tuesday

22

4

26

Wednesday

9

2

11

Based
on this work sample, what percentage of time was the student actually studying?