Marathon petroleum distribution company manages 600 gas stations in Michigan. Each gas station typically has four underground storage tanks (UGST), three for gasoline and one for diesel. The UGST develop leaks sometimes due to corrosion or changes in soil conditions. Based on historical data, Marathon estimates that the probability that a given UGST develops a leak during a given year is 0.002 for gasoline storage tanks and higher at 0.003 for diesel storage tanks potentially due to higher density of diesel and higher sulfur content. Marathon also estimates that an average leaking tank results in $10,000 in repair costs, $5000 worth lost fuel and $50,000 in clean up costs. Further, disruption to the gas station operations during repairs to the leaking tank, results in lost sales of $100,000 on which the gas station would have earned a pretax profit of $20,000.

An insurance company offers an insurance policy that would pay for repair costs, lost fuel costs and clean up costs (but not for business interruption and lost sales) in the case a UGST develops a leak. The insurance premium is $150 per UGST/year.

Alternatively, Tank Repairs Incorporated has developed a new technology of spray coating the insides of the UGSTs with a special self-sealing polymer, which would reduce the probability of leakage to 0.0005 per year/tank. However, the coating has to be done every year when the tanks are emptied for cleaning and inspection. Tank Repairs Inc. offers to coat the UGSTs managed by Marathon at the rate of $140/tank. Each time a tank is coated, it results in incremental lost sales of $200 on which Marathon would have earned a profit of $40.

What should Marathon do? Show all your intermediate steps and calculations clearly and state your assumptions.

Given the year end prices of the following stocks, estimate the standard deviation of the returns of a portfolio of 30% AAA and 70% BBB. Enter your answer as a percent without the % sign. Round your final answer to two decimals.

Question 3.[10 pt]

As indicated in the course book and discussed in the class extensively, there is

generally an efficiency trade-off among execution time, memory usage and communication

overhead for a given algorithm. Please give at least two examples where such a trade-off occurs.

For example, can you give an algorithm example wherein more storage permits faster execution,

or vice versa? Similarly, can you exemplify another algorithm wherein there are trade-offs

among communication and/or memory and/or execution time?

Algorithm Trade-off Example Brief Discussion 1 [5pt]:

Write a paragraph here by explaining the

name of the algorithm and how the performance trade-off.

Algorithm Trade-off Example Brief Discussion 2 [5pt]:

Write a paragraph here by explaining the

5

name of the algorithm and how the performance trade-off occurs.

Question 4. [30 pt]

In this exercise, we start getting familiar withtwo-dimensional arrays, i.e., a

matrix (remember that matrices are nothing but 2D arrays).Matrices are one of the most

fundamental data structures, and they are used in every aspect of Information Technology

including but not limited to AI, cyber-security and software engineering. The most basic

definition of a matrix is here:



https://www.mathsisfun.com/algebra/matrix-introduction.html

Specifically, as an example was given in the above link for 2x2 matrix, you will perform the

most basic arithmetic operation on a matrix,

adding two matrices entry-wise

. Please see the link

below and read

“Entrywise Sum”.

Each corresponding cell in a matrix is added and put into 3

rd

target matrix.



https://en.wikipedia.org/wiki/Matrix_addition

Write a program named “

hw2.py

” that will add two matrices entry-wise. The matrix dimension

is fixed and 5x5 for this exercise. Your program should print an error if the dimensions of the

two matrices are different. In this case, print a message stating that the matrix dimensions does

not match. There are two matrices to be added. One is shown in “hw2-m1.txt”

5 2 0 3 4

2 4 1 1 0

3 0 5 6 1

0 2 6 0 1

4 1 1 0 0

6

The other one is shown in “hw2-m2.txt”

2 0 4 0 1

2 2 1 0 5

0 0 1 0 3

2 1 0 4 1

0 0 4 0 1

Read these two matrices from “.txt” files, and use your own codes to add them,

donot use built-

in functions

. Finally, you should print the result on the screen as

The result is:

7 2 4 3 5

4 6 2 1 5

3 0 6 6 4

2 3 6 4 2

4 1 5 0 1

Discussion: Change & amp; Innovation in Nursing Creating Innovative Models of Clinical Nursing Education Innovation leads to change, and that change leads to improvements in care, service, quality, and professionalism. Real improvements in quality, care, and services come from effective, insightful change and positive innovation that is derived from people who are prepared to take the lead and act on their ideas. It is not suggested that every change is positive or good. Clearly change for change's sake or change that is ill-conceived or poorly planned can have negative consequences. However, change, facilitated or driven by clinical leaders, people, being innovative that leads to improvements in quality, care, and services is considered valuable and essential. Clinical leaders are the health professionals best placed to lead change in practice and suggest innovations that impact positively on clinical quality. Innovation can also mean bringing into existence something new that can be sustained, and which has some value or utility. In effect, innovation results in a breakthrough of some sort. The problem and need for change Although nursing care has changed significantly over the past 30 years, methods to clinically train nursing students have not. The traditional model of clinical nursing education, where a faculty member oversees a group of six to eight students on an acute care unit for a 4- to 8-hour shift, provides a haphazard approach to learning. A need exists to add innovative ways to effectively train more nursing students to better prepare them for today’s health care environment. Using a change framework, seven approaches to clinical nursing education were created through academic-practice partnerships. These approaches may increase the effectiveness and efficiency of the clinical nursing education system. For that change to be successful, one must undertake a series of eight thoughtful steps. The first two steps set the stage for change to occur and include creating a sense of urgency and establishing a group of people to guide the change process. The next step creates a vision for change. The next four steps involve making change happen and include communicating the vision, empowering others to lead change, acknowledging short-term wins, and perseverance. The final step targets ways to make change last. These eight steps can provide a solid framework for implementing clinical nursing education effort Rationale for change This innovation includes a call to redesign the nursing educational system to better meet the demands of the current and future nursing practice environment. This redesign includes increasing nursing students’ community-based experiences and exposing students to complex health care issues, such as those found in long-term care settings. Research question With significant changes in nursing practice, what are the best innovative ways to train futures nurses to match the 21st a century and beyond.

please can someone help me with a response this post

Scenario: Susan is a 65-year-old school nurse who has recently retired from an elementary school. She is beginning to feel rather lonely now that she is no longer working. She is a widow with adult children living out of the area. Her children have suggested that she may want to move to their city and be closer to her grandchildren. She has been avoiding these discussions with her family and tells them all is fine. Moving seems like a major upheaval to her. Although she has been in fair health physically, at her last visit to the health care provider, she had lost 10 pounds and is just below her desired weight. See the link to the Overview of the Nursing Process document to assist with this assignment. Initial Discussion Post: Select a developmental theory presented in this module and apply it to the scenario above. Use the chosen theory to address the following: Explain her behavior. State two (2) priority nursing concerns and related nursing interventions for her.

C++ and leave comments explaining. Thank you

You are given two STL lists X and P where n P is already in sorted order. Write a valid C++ function

printPositions(X,P) that prints the elements in X specified by P. For example, if P = 0, 3, 7, 8, the elements in positions 0 (head of the list), 3, 7, and 8 in

X are printed. You may use only the public STL container operations. Also specify the running time of your algorithm using Big-Oh notation.

Hint: You may wish to use iterators while keeping track of the position of items being iterated through.

For this assignment you have to create tables as reviewed in class Manufacturer table, Product table and Stock table. The code is in Week 7 PPT lecture. You are to add update as needed to make the tables the same as below and match Product, Manufacturer and Stock as below.

For this assignment you will be working with these same tables.  

Please complete the following tasks and submit in word file or notepad.

1. First insert tuples into two of the tables and make sure the contents of the tables match below.  

Write and execute the SQL to insert three records ProductID 844, 555 and 645 to the Product table (see below)

Write and execute the SQL to insert the one record to the Stock table (see below).  

2. Write and execute the SQL select statements to do the following selections of ALL TUPLES IN A TABLE

a. Select all (attributes) tuples in Product

b. Select all (attributes) tuples in Manufacturer

c. Select all (attributes) tuples in Stock

3. Write and execute the SQL select statements to do the following selections of ONLY SOME TUPLED IN A TABLE

a. Select Manufacturer ID = 1 tuples in Product table.

b. Select ProductID of Products that have a quantity of 300.

c. Select ProductID of Products that have quantity of 300 and less.

4. Write and execute the SQL select statements that select attributes (not all) based on a condition.

a. Select ProductID for items with ManufacturerID of 4.

b. Select ProductName for items with ManufacturerID of 1.

c. Select Products with the productName 'Keyboard'

5. Write and execute the SQL select statements that SELECT with and without DISTINCT modifier

a. Select ProductName and ManufacturerID from Product

b. Select Product Name and ManufacturerID from Product with the Distinct modifier.

c. Explain the difference in the results from a and b.

For this assignment you have to create tables as reviewed in class Manufacturer table, Product table and Stock table. The code is in Week 7 PPT lecture. You are to add update as needed to make the tables the same as below and match Product, Manufacturer and Stock as below.

For this assignment you will be working with these same tables.  

Please complete the following tasks and submit in word file or notepad.

1. First insert tuples into two of the tables and make sure the contents of the tables match below.  

Write and execute the SQL to insert three records ProductID 844, 555 and 645 to the Product table (see below)

Write and execute the SQL to insert the one record to the Stock table (see below).  

2. Write and execute the SQL select statements to do the following selections of ALL TUPLES IN A TABLE

a. Select all (attributes) tuples in Product

b. Select all (attributes) tuples in Manufacturer

c. Select all (attributes) tuples in Stock

3. Write and execute the SQL select statements to do the following selections of ONLY SOME TUPLED IN A TABLE

a. Select Manufacturer ID = 1 tuples in Product table.

b. Select ProductID of Products that have a quantity of 300.

c. Select ProductID of Products that have quantity of 300 and less.

4. Write and execute the SQL select statements that select attributes (not all) based on a condition.

a. Select ProductID for items with ManufacturerID of 4.

b. Select ProductName for items with ManufacturerID of 1.

c. Select Products with the productName 'Keyboard'

5. Write and execute the SQL select statements that SELECT with and without DISTINCT modifier

a. Select ProductName and ManufacturerID from Product

b. Select Product Name and ManufacturerID from Product with the Distinct modifier.

c. Explain the difference in the results from a and b.

1. Consider the statements below and solve

a. A project has an initial cost of $35,000, expected net cash inflows of $8,000 per year for 7 years, and a cost of capital of 11%. What is the project's discounted payback period? (Hint: Begin by constructing a time line.) Do not round intermediate calculations. Round your answer to two decimal places.

b. A project has an initial cost of $65,000, expected net cash inflows of $13,000 per year for 8 years, and a cost of capital of 12%. What is the project's payback period? Round your answer to two decimal places.

c. A project has an initial cost of $55,000, expected net cash inflows of $11,000 per year for 9 years, and a cost of capital of 8%. What is the project's PI? (Hint: Begin by constructing a time line.) Do not round intermediate calculations. Round your answer to two decimal places.

d. A project has an initial cost of $55,000, expected net cash inflows of $11,000 per year for 8 years, and a cost of capital of 8%. What is the project's NPV? (Hint: Begin by constructing a time line.) Do not round intermediate calculations. Round your answer to the nearest cent.

$ __