11. Sherry wants to rent an apartment. Although rents are below what she is willing to pay, she cannot find an apartment. Then after a month of searching, she finds an apartment but she has to pay an additional $1,000 to have the locks changed. Sherry has just experienced the effects of ________. A) a rent floor with a black market B) inelastic demand C) a market working efficiently D) a rent ceiling 12. A price floor A) always results in a surplus. B) always results in a shortage. C) results in a surplus if the floor price is higher than the equilibrium price. D) results in a shortage if the floor price is higher than the equilibrium price. 13. The total benefit that a person receives from the consumption of goods and services is called A) total utility. B) marginal utility. C) marginal cost. D) opportunity cost. 14. Sonya's budget for magazines and chocolate bars is $50. Her marginal utility from these goods is shown in the table above. The price of a magazine is $5 and the price of a chocolate bar is $2.50. Sonya currently buys 3 magazines and 14 chocolate bars. To maximize her utility, she should A) buy more chocolate bars and fewer magazines. B) buy more magazines and fewer chocolate bars. C) buy more of both goods. D) stay with the current combination of goods. 15. For a consumer, a budget line shows the boundary between A) what is desired and what is not desired. B) what is needed and what is not needed. C) what is affordable and what is not affordable. D) what is available and what is not available.. FOR QUESTION 14 THERE IS NO TABLE GIVEN I DO NOT KNOW WHY THEY SAY THAT BUT THERE IS NO IVEN TABLE

Victory Air has been criticized in the press because of its policy of charging an overweight passenger for a second seat if he or she cannot fit in a single coach seat without his or her body crossing the armrest boundary. In a public letter printed on its website, Victory used the following evidence as part of its defense of its policy:

a. In 2003, a commuter plane crashed on takeoff from Charlotte, North Carolina, in due part to excess weight. We need to be able to require that a heavier passenger pay for an use two seats in order to keep the plane's total weigh within acceptable limits for safe operation of the plane.

b. Our policy is not an attempt to increase revenues: if there is an available empty seat, we do not charge the heavier passenger for a second seat.

c. Every passenger pays more for a ticket because heavier passengers increase fuel consumption. It's only fair that heavier passengers pay extra for the increased fuel consumption.

d. According to a study by the National Transportation Safety Board, an overweight passenger squeezed into a single coach seat might be a safety risk to another passenger or to himself or herself if the plane must be evacuated quickly.

e. The average weight of a passenger climbed from 180 pounds in 1995 to 190 pounds in 2003. Estimates place the current average weight at almost 195 pounds.

For each of these five items, write a brief paragraph* in which you identify the nature of the evidence (if any) -- numerical date, example, or expert testimony -- and identify any logical fallacies**. If you think the evidence is not as effective as it might be, what is the problem, and how would you make it more effective?

Calculation of half-life for alpha emission using time-independent
Schrodinger Equation using the following following information:
Radionuclide: 241-Am (Z=95); Ea = 5.49 MeV; Measured Half-Life~432y

Follow the steps involved and show your work for each subset question, not the
final answer:
(a) Evaluate the well radius [=separation distance (r) between the center of
the alpha particle as it abuts the recoil nucleus];
(b) Evaluate the coulomb barrier potential energy (U) for the well;
(c) Estimate the separation distance (r*) from the center of the potential well
where the coulomb potential equals the energy of the alpha particle;
(d) Assuming a square shaped single barrier of height “U”, evaluate the
tunneling probability by solving for the transmission coefficient and use of
the associated separation (=r*-r);
(e) Calculate the frequency with which the alpha particle strikes the well
boundary to try to get out of the well;
(f) Calculate the half-life and compare it with the known half-life for alpha
emission from 238U;
(g) Use the spatially-averaged effective approximation for the height of the
barrier by integrating the variation of “U” with distance from “r” to “r*” and
re-calculate the half-life and compare it with the known half-life for alpha
emission from 238U;
(h) Approximate the hyperbolic shaped barrier variation outside of the well
by breaking them up into 5 progressively reduced height square shaped
barriers, each with a width = (r*-r)/5 and calculate the tunneling
probabilities associated with each segment;
(i) Re-calculate for the half-life combining the probabilities from each of the 5
bins, and compare the value with the known half-life.

1. A service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with two hoses. Let X denote the number of hoses being used on the self-service island at a par- ticular time, and let Y denote the number of hoses on the full service island in use that time. The joint pmf of X and Y appears in the accompanying tabulation.

a. WhatisP(X=1andY =1)?

b. ComputeP(X≤1andY ≤1).

c. Compute P(X ̸= 1 and Y ̸= 1).

d. Compute the marginal pmf of X and Y. Using pX(x), what is P(X ≤ 1)?

e. Are X and Y are independent? Explain.

2. Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 26 psi. Suppose the actual air pressure in each tire is a random variable – X for the right tire and Y for the left tire, with joint pdf

?K(x2 +y2), 20≤x≤30, 20≤y≤30,

f(x,y) =

0, otherwise

a. What is the value of K?

b. What is the probability that both tires are underfilled?

c. What is the probability that the difference in air pressure between the two tires is at most 2 psi? (Hint: Draw the shaded region first and then find the boundary of the integration.)

d. Determine the marginal pdf of X and Y . e. Are X and Y independent? Explain.
f. Find E(X) and E(Y ).

Multiple Choice

1. Which of the following is not used to define a chamfer?

a. Angle and a distance

b. Distance and distance

c. Two angles and a distance

2. Which tool is used to draw a spring?

a. Coil

b. Loft

c. Sweep

3. The Edit Sketch tool can be applied to shapes created with which of the following tools?

a. Extrude

b. Rectangle

c. Revolve

d. Hole

4. The Edit Feature tool can be applied to shapes created with which of the following tools?

a. Circle

b. Line

c. Point, Center Point

d. Extrude

5. Which of the following parameters cannot be used to draw a work plane?

a. Angle to a plane

b. Point and a tangent

c. 3-Point

d. Tangent to face through

6. Which of the following is a material not listed under the Physical tab of the Properties dialog box?

a. Mild Steel

b. Aluminum Bronze

c. Glass

7. Sketched shapes can be projected between work planes using which tool?

a. Sweep

b. Boundary Patch

c. Move Face

d. Project Geometry

8. Which of the following will happen if a work plane is deleted?

a. The work plane will disappear from the screen and all entities will be deleted.

b. The work plane will disappear from the screen and all entities will remain in place.

9. Why are ribs used on molded parts?

a. To increase the part's flexibility

b. To balance the part

c. To increase the part's strength

10. The Face Draft tool is used to

a. Create airflow

b. Create an angled surface

c. Create a current behind a moving object

2. [1.1, 2.1, 2.2] In the recruitment process of a well-known Seattle hi-tech firm, résumés for a posted position are collected in an electronic drop box. An automatic sorting algorithm supervised by a junior recruiter whittles down the submitted résumés to an initial shortlist. All résumés in this shortlist go through the next three steps.

(1) Resource-type "junior HR person" checks the résumé for information about all non-technical aspects and ranks (fit ranking) all shortlisted candidates on a fit-to-firm scale. This takes about 8 minutes per résumé. (2) Resource-type "technical person" (usually with some help from the group that has posted the position) checks the résumé for evidence of technical skills and ranks the shortlisted candidates on a technical scale (technical ranking). This takes about 5 minutes per résumé. (3) There are two resources of resource-type "senior HR executive" who are charged with conducting preliminary phone conversation of about 24 minutes with each shortlisted candidate. That is, each shortlisted candidate get to have a conversation with any one of the two senior HR executives and the conversation takes 24 minutes.

To define the process boundary, we focus on three steps described above that are performed on all shortlisted candidates. Flow unit is shortlisted résumé.

(a) What is the capacity of each resource-type and capacity of the process in units per hour? Which resource-type is the bottleneck?

(b) What will be your suggestion (in words) to improve the capacity of the process? Going beyond your suggestion, if we can somehow manage to completely balance the process by redistributing work between different resource-types, what is the maximum possible capacity of the process?

1. Which of the following does not pose a risk to a person’s ability to service their required debt payments?
   1.      Variability in cash flows caused by changes in earnings
   2.     A decrease in asset values
   3.      Risks covered by insurance

               None of the above affect a person’s ability to service their required debt payments

A financial institution owns a portfolio of options dependent on the US dollar–sterling exchange rate. The delta of the portfolio with respect to percentage changes in the exchange rate is 6.1. If the daily volatility of the exchange rate is 0.5% and a linear model is assumed.

The estimated 10-day 99% VaR is $ .

Current models of climate change and cost-benefit analysis can rely heavily on the inclusion of extremely low probability but very high cost (catastrophic and irrevocable ecosystem changes, for example) events. Do inclusion of these events increase the validity of the analysis or do they bias the results?

Explain what might happen to accident rates if compulsory auto liability insurance laws were repealed and tort liability were restricted without mandating the purchase of PIP coverage. How could the government promote greater driving safety if these changes were made?