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Test Your Knowledge: True or False and Multiple Choice Questions

## True or False Questions

A.Please answer the following True or False questions (each worth 2 points)

1)Affinity diagram is used to identify the root causes of a problem.

True ______   False _______

2)A process is capable if the variations fall within +- 3 standard deviation

True ______   False______

3)Fishbone diagram is used to organize data in categories

True ______   False _______

4)Random variations fall outside the control limits.

True ______   False______

5)Control charts tell  Project Managers how to control the project.

True ______   False______

6)Run chart can be used as a measurement tool to track changes in a process over time.

True _____   False________

7) A process in control does not produce unacceptable output.

True ______   False______

8)A Six Sigma process must have a process capability index of 6.

True _____   False________

9)A Control Chart is a Trend Chart (or Run Chart) that has control limits

True _____   False________

10)Both X bar chart and R chart must be out of control for the process to be out   of control

True _____   False________

1.Which of the following tools are used to get the shape of the distribution.

A) Matrix diagram

B) Histogram

C) Affinity Diagram

D) Check sheets

E) Process map

2.Which of the following tools are used to organize ideas.

A) Matrix diagram

B) Histogram

C) Affinity Diagram

D) Check sheets

E) Process map

3.Which of the following is true of random variation?

A)  It is uncontrollable.

B)  It is centered around the mean.

C)  It is within + or – 3 standard deviation of the mean.

D)  All of the above.

E)  None of the above

4.An R chart is used to monitor __________.

A.Variation of the Mean

B.Process Dispersion

C.Trend in mean value

D.Trend in standard deviation

5.  A 3 Sigma Process should not have more than _______defects per million opportunities

A.2700

B.3.4

C.30,000

D.66,807

C.Please respond to the following questions. Each question is worth 10 points:

1)97.

1)Please create a process map for withdrawing cash from an ATM machine as described below:

Janet needed some cash and walks up to an ATM machine.  She inserts her debit card.  The machine returns the card and the monitor reads: “could not read the card try again”.  Janet recognizes that she has entered the card in the wrong direction. She takes the card and turns it around and insert the card again.  The machine keeps the card and the monitor reads: “enter pass code”.   Janet enters a 4 digit code.  The monitor reads: “ error, try again”.

## Multiple Choice Questions

Janet enters the code again.  The monitor displays: Withdrawal? Yes  No

Janet selects Yes.  Displays shows:

“ \$100, \$200, \$300, \$400, \$______”.

Janet selects  \$200.   The machine pushes out 10 \$20 bills.  Monitor then displays “Receipt?   Yes  No”.  Janet selects No.  Monitor displays “Take your cash”  .

The machine returns the card.  Display changes to “Thank You”.

Janet takes the cash and her card and walks away.

2)A product manager has conducted a customer satisfaction survey of 30 customers on a scale of 1 to 5.  The survey data is shown below. Calculate the mean and standard deviation of the survey and plot a histogram of the data.  Does the distribution approximate Normal?

Customer Satisfaction rating

1 4

2 3

3 2

4 5

5 5

6 2

7 1

8 4

9 3

10 4

11 4

12 5

13 3

14 3

15 2

16 1

17 5

18 3

19 4

20 3

21 4

22 2

23 4

24 4

25 3

26 3

27 3

28 2

29 2

30 3

2) A project manager at System Design Corporation has collected the following data on the size of software programs and the length of programming time. The company is bidding on a new system that is estimated to consist of 300,000 lines of code. Use a scatter plot to find the correlation function of coding time to program size and estimate the number of days it would take to code the system

Module Size in 1000 lines of code (KLOC) Number of days to code

1 150 72

2 158 66

3 148 65

4 120 60

5 178 75

6 170 68

7 152 68

8 138 65

9 200 80

10 195 75

11 189 65

12 173 68

13 159 62

14 163 71

15 150 65

16 140 65

17 206 74

18 144 64

19 157 70

20 183 76

21 195 75

22 190 77

23 185 73

24 152 58

25 178 70

4)A Black Belt consultant in the ABC Corporation reported the Sigma Performance of a manufacturing line as 3.1.  Using Z score table calculate the % defective units coming off the production line.

5.  A project manager at COMSOFT corporation has collected statistics on the organization’s software development process.  He has the size of each project in number of lines of code for the past 20 projects and the number of design errors discovered in design reviews for each project.  .

Describe what type of control chart you can use and how do you calculate the control limits to check if the software design process in this organization is in control.

6.A project manager has developed the following data on a project tasks and duration.     Please create an AON diagram, identify the critical path and the expected project duration.    The customer has asked for a 95% confidence on the project completion date.  Calculate the number of additional weeks the project manager needs to make that commitment.

Time estimation in weeks

Task Predecessor optimistic Most likely Pessimistic

A 3 4 5

B A 1 8 15

C A 2 4 6

D A 4 8 12

E B 7 9 11

F C,B 2 5 8

G E,D 5 7 9

H F,G 4 7 10