Question 1 (10 points)

What are the four major components of a DFD?

Question 2 (10 points)

What is the difference between "Programming" and "Software Engineering"?

Question 3 (10 points)

Write a brief description of a Data Flow Diagram (DFD).

Question 4 (10 points)

A control Process supervises and coordinates the activities of the other bubbles in the Data Flow Diagram. It is represented graphically as a .......................

Question 5 (10 points)

A Control Flow carries only......................information. It is represented graphically as a dashed line.

Question 6 (10 points)

A double-headed Data Flow represents ................flow of information.

Question 7 (10 points)

The terminator shows the external entities with which the system communicates. The Terminator is graphically represented as a ..............

Question 8 (10 points)

Give an example of the use of the "[]" notation.

Question 9 (10 points)

Give an example of the use of the iteration "{}" notation.

Question 10 (10 points)

Correct the following Data Dictionary definitions:

a = b + {c} + (d|e)

+ 75% High-school dropout rates and performance at graduation by score at entrance exam Grade at entrance exam Percent that dropped out from Score on the final exam at - cutoff score for admission high school end of high school 50 0 0 62 elite schools Admitted in 0.53 0.45 51.0 0.50 4810 0 30 0.20 Not admitted in elite schools 42 5 0.25 0.17 45.0 011 Source: Adapted from the analysis of de lanwry, Dustan, Sadoulet (b) Draw two regression lines (Excel commands: Chart, Add linear trend line in Excel, Display equation on graph) separately for the points above the cutoff score (i.e., for those admitted to the elite schools) and for those below the cutoff score (i.e., not admitted to elite schools). Measure the "discontinuity" that you observe at the limit at the point where students were just admitted, i.e., the vertical difference in the two trend lines evaluated at the cutoff. (c) Explain why this may be a credible measure of the causal impact of attending an elite school on the risk of not graduating from high school. In what sense is it a "local" treatment effect? What are some of the factors that might lead to a different impact for students with entrance exam scores far above the cutoff? (d) Repeat the analysis as in question (1b) using the score on the final exam at the end of high school as the dependent variable. Report the impact of attending an elite school on final exam scores at the end of high school. (e) Discuss the trade-off faced by students upon deciding whether to attend an elite school. (f) What is the condition for the validity of this method, and what does this imply about the characteristics of individuals around the cutoff? Discuss what data would you need to have to test that this condition applies and what analysis would you do to support it. Report your results using two graphs: one for the graduation rate and the other for the score on the final exam at the end of high school.Question 7 5 pts What is the method(s) not used in assessing Project Risk? Sensitivity Analysis Break Even Analysis @. Scenario Analysis Cost Benefit Analysis Question 8 5 pts When calculating the Break Even Analysis, one needs to subtract the FW of the cash inflows from the PW of the cash outflows. True False D Question 9 5 pts Scenario Analysis usually does not consider; Worst Case Scenario Do Nothing Scenario Most Likely Case Scenario Best Case Scenario OA professor records the majors of her 30 students as follows: Accounting Economics Undecided Finance Management Management Finance Marketing Economics Management Marketing Finance Marketing Accounting Finance Finance Undecided Management Undecided Economics Economics Accounting Management Undecided Economics Accounting Economics Management Accounting Economics To Click here for the Excel Data File o. What is the measurement scale of these data? O Interval O Ordinal O Nominal RatioSuppose the weekly demand for a oertain good in thousands of units. is given by the equation P = 39 Q, and the weekly supply ounre of the good by the equation P = T + SQ where P is the price in dollars. Finally, suppose a per-unit tax of $24, to be collected from sellers is imposed in this market. Complete the following questions. Note: If necessary round your answers to two decimal places. at Graph the weekly demand. supply (pmtax}. and supply (posttax) equations. v Supply Clive (without tax) 1D 12 14 16 18 Ouantityithuusandsulunilsiweelt) Formal systems thinking tools for management include all of the following except: O A. Learning laboratories B. Systems archetypes C. Diagrams that portray organizational performance over time D. Simulation modeling E. Cost-benefit analysis QUESTION 8 The industry to first adopt quality improvement (QI) techniques was: A. Aviation B. Manufacturing and service C. Academia D. Public health E. Health care delivery QUESTION 9 Approximately what percentage of health care expenditures in the United States is made for public health services? A. 5% B. 1% C. 20% D. 15% E. 10%