You are conducting a study to see if the proportion of men over the age of 50 who regularly have their prostate examined is significantly less than 0.32. A random sample of 715 men over the age of 50 found that 196 have their prostate regularly examined. Do the sample data provide convincing evidence to support the claim? Test the relevant hypotheses using a 10% level of significance. Give answer to at least 4 decimal places. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) H0: H1: Based on the hypotheses, find the following: Test Statistic = Critical-value = (Hint: Look up critical value online. This is the z-score that represents the boundary for the level of significance. Use invNorm to find the z-score that corresponds to your significance level.) Shade the sampling distribution curve with the correct critical value(s) and shade the critical regions. The arrows can only be dragged to z-scores that are accurate to 1 place after the decimal point (these values correspond to the tick marks on the horizontal axis). Select from the drop down menu to shade to the left, to the right, between or left and right of the z-score(s). Shade: . Click and drag the arrows to adjust the values. Normal curveInterval pointer-1.5 The correct decision is to . The correct summary would be: that the proportion of men over the age of 50 who regularly have their prostate examined is significantly less than 0.32.

In accounting, balance sheets are used to keep of track how much money a person has in an account.  Write a Python program to create a simple three column balance sheet, showing credits in one column, debits in the next, and a running balance in the third.  If the balance dips into the negative, you must show the value in parentheses, the standard method in accounting. Input will be from a text file. The first value will be the opening balance in the account, followed by an integer N indicating N sets of data to follow.  Each subsequent data set will be either the letter 'C' for credit, or 'D' for debit, followed by a dollar amount. Output to the screen a complete balance sheet, with headings and boundary lines above and below, and columns 14 spaces wide.  All amounts will be at least one dollar and are guaranteed to "fit" in the balance sheet.  All values with four digits or more in the whole number portion are to be output with "comma " notation, and all negative values in the balance column are to be shown in parentheses.

Let the user input the file name from the keyboard. Refer to the sample output below.

Sample File:

999.99

5

C 8250.55

D 12397.45

D 12345.67

C 15492.59

C 5000000

Sample Run:

Consider the following linear difference equation
yk −0.55yk−1 +0.12yk−2 +0.08yk−3 =xk−1 +1.5xk−2 ,

defined for integers k ≥ 0.

1. (a) Assuming that the initial conditions y−1 = y−2 = y−3 = 0, what is the z-domain transfer function G(z) of the linear system relating the z-transform Y (z) of the output sequence {yk} to the z-transform X(z) of the input sequence {xk} ? Express your answer as a ratio of polynomials in z.

2. (b) What are the number of poles and the number of (finite) zeros of G(z) ?

3. (c) Given that G(z) has a pole at z = −0.25, find the remaining poles, and the finite zeros of

   G(z). Clearly indicate how you obtained the poles.

4. (d) Is the system G(z) bounded-input, bounded-output stable ? Explain your answer making

   reference to the stability boundary in the z-plane.

5. (e) In your answer booklet, neatly sketch the pole-zero-gain plot of G(z) remembering to

   include the leading co-efficient of the numerator polynomial.

6. (f) What are the transient response modes for G(z) ? Note : You are NOT required to determine residues, just the general form of each transient response mode. The response modes must be real-valued sequences.

Task: Design a smart system facilitated by Internet of Everything.

Topic: Smart Homes for The Elderly

1. Develop Operational Concept

A. Vision What is the problem, deficiencies or opportunities? State how the need(s) for an envisioned system is identified. Answer precisely and concisely in a small paragraph.
B. What is the envisioned system? In a few sentences, tell what is the envisioned system? the most important functions of the system, and the most significant effects of the system?
C. Who are stakeholders? Who are clients (major stakeholders)? Identify the stakeholders of your envisioned system; particularly the major stakeholders – the clients, to whom the system is designed for, and who will use this system for their mission.
D. State the objectives of the clients (the major stakeholders) in the immediate super-system. Explain how the clients will benefit from the envisioned system in their mission environment.
E. Use cases describe how the envisioned system works in the operational environment. Use Use-Case Diagram and Sequence Diagram to describe major use cases.
F. Define System Boundary - Use IDEF0 draw External Systems Diagram, to define the interaction between the envisioned system and its external systems. Draw the External Systems Diagram, if there are many external systems in the case, select 4 or 5 most relevant ones (having more inputs / outputs). For some necessary inputs / outputs from/to omitted external systems, mark them with brief text.

You are using a silver spoon to stir water that just started boiling so that you can achieve a more even heat distribution in your water. The spoon is partially immersed in boiling water and a thermometer in your kitchen reads 27 °C. The handle of the spoon has a cross section of 2mm × 1cm and extends 15 cm in the air from the free surface of the water. The heat transfer coefficient at the exposed surfaces of the spoon handle is 3 W/m2×K.

A) Determine the temperature difference across the exposed surface of the spoon handle.

B) Can the lumped sum analysis be applied to the water as it cools? Provide justification to support your answer.

******Note:

Your answer must provide the following:

1. Assumptions: state all assumptions necessary to solve the problem, explain their relevance and

   validate them where necessary.

2. Schematic: draw a schematic showing the flow of energy in your system

3. What are the modes of heat transfer that the spoon is exposed to?

4. Is this a time dependent or steady state problem? Why or why not?

5. Is this a 1-D, 2-D or 3-D problem? Why or why not?

6. What is the thermal conductivity of the material? Can you assume it constant and if so, for what

   ranges?

7. The heat transfer coefficient is a function of many variables. Discuss the variables and whether the

   heat transfer coefficient can be assumed to be constant

8. What boundary condition are you applying and why?

9. Concluding remarks: explain the meaning of the answers obtained

1. Some Operating systems that were designed with a security mindset are

1. GemSOS, Multics, Scomp
2. There has no such thing
3. Windows, Mac, Linux
4. Does, Minx

2. A protection state consists of

1. Access control matrix
2. subjects and objects
3. System boundary and security perimeter
4. Subjects, objects and the operations that subjects can perform on objects

3. What is the difference between secrecy and integrity?

1. secrecy is concerned with unauthorized observation of information while integrity is concerned with unauthorized modification of information.
2. Secrecy protects government classified information while integrity protects corporate information
3. There is no difference
4. Secrecy is concerned with unauthorized collection of information while integrity is concerned with unauthorized creation of information

4. Mandatory access control can be applied along with discretionary access and it is meant to do the followings

1. Build a system for limited purpose
2. Protect user from accidental modification or leakage of their own data in addition to preventing malicious program from making modification
3. Build a military system
4. Build a universally secure system

5. What is Operating System?

1. The user interface with PC and Mac
2. Processes and data in a computer system
3. Software that provides access to various hardware resources in a computer system

6. The three components of referent monitor are

1. TCB, Operating System, Interfaces
2. Interface, Authorization module, Policy store
3. Application, TCB, Security
4. Interface, Files, Implementation

According to a study by The Kauffman Foundation, the majority of the capital for entrepreneurial start-ups initially comes from

Select one:

a. public financing (e.g., SBA loans).

b. venture capital financing

c. bank financing

d. owner debt and savings

The CEO from Intel chooses to work in a cubicle, which of the following is likely NOT true regarding his behavior:

Select one:

a. he is trying to establish a strong role model/leadership

b. he is being extrinsically motivated to do so

c. he is trying to create a culture of effective communication

d. he is trying to encourage openness

The biggest challenge for a new start-up that is pursuing pioneering and adaptive strategies to achieve differentiation is:

Select one:

a. having a simple organizational structure

b. achieving cost efficiency

c. establishing brand image

d. achieving flexibility

Which of the following approaches to behavioral strategic control is most likely utilized in an organization like Apple in which there is a great need for innovation and a high degree of autonomy?

Select one:

a. Rewards

b. Structure

c. Culture

d. Boundary

In the 1920’s, General Motors structured its organization around its product lines (Cadillac, Buick, Oldsmobile, Pontiac and Chevrolet). What organizational structure did General Motors adopt?

Select one:

a. Modular

b. Ambidextrous

c. Divisional

d. Simple

1. Write very briefly about the following:                                                                        

a)  Fick’s second law and its application

b) Different Mass transfer coefficients

c) Raoult’s law and Henry’s law and their applications  

d) Give the j_D correlation for mass transfer in flow parallel to flat plate

e)  Chilton – Colburn analogy

f) Capacity coefficients and their use

g) Marangony effect

2. Explain and derive the Mass transfer flux equation for molecular diffusion in gases for the case of (i) Equimolar counter diffusion and (ii) A is diffusing through stagnant non diffusing B.
3. a) Explain the diffusion through a varying cross sectional area and derive the equation for mass transfer flux.

        4)   a) Explain briefly about the diffusivities in gases

b) Explain briefly about the diffusivities in liquids

1. Explain the diffusivities of electrolytes in liquids              

b) Predict the diffusion coefficients of dilute electrolytes for the following cases:

i) For  KCl at 25 ⁰C, calculate  .

ii) For  KCl at 18.5 ⁰C, calculate  .             

iii) For  CaCl₂ at 25 ⁰C, calculate  . Also predict Di of ion Ca⁺² and of  Cl^-.

Data: λ₊(K⁺) =73.5, λ_-(Cl^-) =76.3, λ₊(Ca²⁺/2) = 59.5

       6)   Explain (a) The two film theory and (b) The penetration theory.                       

      7)   Explain the mass transfer in the laminar boundary layer when the fluid is in laminar flow over a flat plate.

8).Explain the following briefly.

1. Individual and overall mass transfer coefficients.
2. Reynolds analogy.   

1. Marv and Delores, married taxpayers who file a joint return, sell their personal residence on December 1st for $180,000. They lived in the house for the past 52 years. Their adjusted basis in their home was $35,000. Calculate their recognized (taxable) gain on the sale of their personal residence.

2. The following transactions were reported on a 1099-B. The taxpayer, who files as single, had taxable income of $100,000. Calculate the tax owed on the transactions.

1. Marv and Delores, married taxpayers who file a joint return, sell their personal residence on December 1st for $180,000. They lived in the house for the past 52 years. Their adjusted basis in their home was $35,000. Calculate their recognized (taxable) gain on the sale of their personal residence.

2. The following transactions were reported on a 1099-B. The taxpayer, who files as single, had taxable income of $100,000. Calculate the tax owed on the transactions.