A business built a simple linear regression model from a sample of 20 units. The resulting linear model equation is y' = 7.53 + 0.225x.
The correlation coefficient is 0.55. What is the value of the t critical value used to make the rejection region for the test "Is the correlation coefficient significantly different from zero?" α= 0.01
In: Statistics and Probability
A multivariate logistic regression model has been built to predict the propensity of
shoppers to perform a repeat purchase of a free gift that they are given. The
descriptive features used by the model are the age of the customer, the
socio-economic band to which the customer belongs (a, b, or c), the average amount
of money the customer spends on each visit to the shop, and the average number of
visits the customer makes to the shop per week. This model is being used by the
marketing department to determine who should be given the free gift. The weights in
the trained model are shown in the table below:
Feature Weight
Intercept -3.82398
Age -0.02990
Socio Economic Band B -0.09089
Socio Economic Band C -0.19558
Shop Value 0.02999
Shop Frequency 0.74572
Using this model to make predication for each of the following query instances:
ID Age Socio Economic Band Shop Frequency Shop Value
1 56 B 1.60 109.32
2 21 C 4.92 11.28
3 48 B 1.21 161.19
4 37 C 0.72 170.65
5 32 A 1.08 165.39
In: Computer Science
Lisa and Danny are neighbors that live on Guerrero Street. Fifteen years ago Lisa built a gazebo. She frequently used the gazebo, but she was not aware that actually the gazebo was on property belonging to Danny. A month after the gazebo was built Lisa built a fence between her and Danny’s yard, and the gazebo was on Lisa’s side of the fence. Fifteen years later, Danny has a survey done, and he discovers that the gazebo is on his land. Danny brings a suit to evict Lisa from the land. Does Lisa have a defense? Assume that the state in question has an adverse possession period of ten years.
The requirements below must be met for your paper to be accepted and graded:
Write between 500 – 750 words (approximately 2 – 3 pages) using Microsoft Word.
Attempt APA style, see example below.
Use font size 12 and 1” margins.
Include cover page and reference page.
At least 60% of your paper must be original content/writing.
No more than 40% of your content/information may come from references.
Use at least two references from outside the course material, preferably from EBSCOhost. Text book, lectures, and other materials in the course may be used, but are not counted toward the two reference requirement.
Reference material (data, dates, graphs, quotes, paraphrased
words, values, etc.) must be identified in the paper and listed on
a reference page.Reference material (data, dates, graphs, quotes,
paraphrased words, values, etc.) must come from sources such as,
scholarly journals found in EBSCOhost, online newspapers such as
The Wall Street Journal, government websites, etc. Sources such as
Wikis, Yahoo Answers, eHow, etc. are not acceptable.
In: Accounting
John J. is a school nurse at Jackson Elementary School, which
was built in 1960. Nurse John hasnoticed that many students from
Ms. Zee’s second grade class have come to the clinic
complaining about coughing, sneezing, runny nose, and watery eyes.
Nurse John has also observed that Steven Tea, the only asthmatic
student in Ms. Zee’s class, has had more asthma
attacks this year than he did last year. Because the rest of the
school is not experiencing the same respiratory problems, Nurse
John is concerned that something in Ms. Zee’s classroom is
causing students to feel ill.
Nurse John decides to visit Ms. Zee’s classroom. Upon entering the
classroom, one of the few located in the school’s basement, John is
struck by the powerful musty smell that inhabits the
room. While talking to Ms. Zee, John learns that the classroom has
“smelled bad for years,” and that students from previous years have
complained about respiratory problems. Nurse John notes that Ms.
Zee has stuffed a blanket at the base of the classroom’s small
rectangular window near the ceiling because the window does not
close completely. John suspects that Ms. Zee’s classroom walls are
contaminated with mold. Upon further research, Nurse John learns
that if water gets between the exterior and the interior of a
building’s wall, mold can grow in the moist environment. This
situation can occur as the result of construction defects in the
building (e.g., leaky windows). Nurse John also learns that people
who are exposed to extensive mold growth may experience allergic
reactions, such as hay fever-like allergy symptoms, and that people
who already have a chronic respiratory disease, such as asthma, may
experience difficulty breathing when exposed to mold. Nurse John is
concerned about the possible mold contamination effect on his
asthmatic student, Steven.
DIRECTION: Using Nursing process you are assign to make a Community Care Plan, your main focus Of your nursing care plan is to facilitate standardized, evidence-based and holistic care.
Format
Introduction
- Introduction about the problem
Body
- Assessment
- Community Diagnosis or statement of the problem:
Recommendation:
| Specific objective (at least two) |
Intervention | Resources needed |
Time Table | Outcome Criteria |
| Use SMART as your guide in creating a good objective |
Independent Dependent Management |
Link with available resources |
Achieve within specified time frame |
Determine if objective had met. |
In: Nursing
Anthony Johnson is a marketing executive with a substantial investment portfolio that he has built over the years from savings. He owns shares in National Savings, a large local bank. A close friend and golfing partner, John Stansfield, is a senior executive at National. National has seen its stock price drop considerably, and the news and outlook are not good. In a conversation about the economy and the banking industry on the golf course, Stansfield mentions that National will surprise the investment community in a few days when it announces excellent earnings for the quarter. Johnson is pleasantly surprised by this information, and thinking that Stansfield, as a senior executive, knows the law and would not disclose any illegal inside information, he doubles his position in the bank's shares. Subsequently, National announces that it had good operating earnings but had to set aside reserves for anticipated significant losses on its loan portfolio in the next quarter. The combined news causes the stock to go down (instead of up) almost 20%.
did Anthony Johnson and/or John Stansfield violate any of the ethical rules? Explain why or why not.
In: Finance
IN MATLAB,
Create a 8x8 magic matrix. Then use MATLAB built in function, sum, to calculate the sum of each column. Use subscript notation to find the 6th element and the last element of each magic square. Find the maximum of all the elements in each magic square.
In: Computer Science
1A) Nicholas has built a 16,000 dollar stock portfolio with a beta of 1.2, an expected return of 10.8 percent, and a standard deviation of 25%. Melinda also has a 16,000 dollar portfolio, but it has a beta of 0.8, an expected return of 9.2 percent, and a standard deviation that is also 25%. The correlation coefficient between Nicholas' and Melinda's portfolios is zero. If Nicholas and Melinda marry and combine their portfolios, which of the following best describes their combined $32,000 portfolio?
- The combined portfolio's expected return will be greater than the simple weighted average of the expected returns of the two individual portfolios, 10.0%.
- The combined portfolio's standard deviation will be equal to a simple average of the two portfolios' standard deviations, 25%.
- The combined portfolio's beta will be equal to a simple weighted average of the betas of the two individual portfolios, 1.0; its expected return will be equal to a simple weighted average of the expected returns of the two individual portfolios, 10.0%; and its standard deviation will be less than the simple average of the two portfolios' standard deviations, 25%.
- The combined portfolio's standard deviation will be greater than the simple average of the two portfolios' standard deviations, 25%.
1B) Stock A has an expected return of 11 percent, a beta of 0.9, and a standard deviation of 15 percent. Stock B also has a beta of 0.9, but its expected return is 9 percent and its standard deviation is 13 percent. Portfolio AB has $900,000 invested in Stock A and $300,000 invested in Stock B. The correlation between the two stocks' returns is zero. Which of the following statements is CORRECT?
- The stocks are not in equilibrium based on the CAPM; if A is valued correctly, then B is overvalued.
- Portfolio AB's expected return is 11.0%.
- The stocks are not in equilibrium based on the CAPM; if A is valued correctly, then B is undervalued.
- Portfolio AB's beta is less than 1.2.
1C) Suppose you obtain the following information regarding Companies Facebook and Uber:
Given this information, which of the following statements is CORRECT?
- Company Facebook's stock is a better buy than Company Uber's stock.
- Company Facebook has more diversifiable risk than Company Uber.
- Company Facebook's returns will be negative when Uber's returns are positive.
- Company Facebook has a lower coefficient of variation than Company Uber.
In: Finance
4. Timco airlines is a large airplane maker. It recently built the T123. It can carry 500 passengers on two levels. Initial project investments were $13B. Assume that the initial investment was paid on Dec 31, 2010. Assume that Timco will produce 60 aircraft per year for five years. Each aircraft will be sold for $230M and total operating costs are 75% of revenues. Assume that revenues and costs occur at year-end with the first revenues (and costs) occurring on Dec 31, 2011. What is the NPV of the project if Timco’s cost of capital is 11%? Calculate the NPV as of Dec 31, 2010. Ignore taxes and assume that there are no terminal year cash flows. Show your work, as appropriate and clearly state your answer (5 points) 5. What is the payback period for the Timco investment outlined in #4? What does the payback period calculation mean? In other words, interpret your answer. 6. What is the Profitability Index as of Dec 31, 2010 for the Timco investment outlined in #4? 7. Timco’s CFO wants you to provide a recommendation – but based on only one of the three sets of analysis above (either NPV, Payback or Profitability Index). Which method do you choose? Why?
In: Finance
Using built in R functions to calculate mean and standard deviation. Simulate the X vector with a length of 50 from a normal distribution with mean 2 and variance 1. Using a for() loop, create 100 different confidence intervals and also create a variable that keeps a count of how many of these confidence intervals contain the true mean 2. Hint: Use If/else statement to keep track of whether the confidence interval contains the true mean or not within the loop. Use set.seed(i) (i.e., i in 1:100) to make sure that other people can reproduce your results and also you have different results for different replications. Print (count/100) at the end. If your solution is less than 95%, what actions can you do to improve the results? Demonstrate it using R.
In: Statistics and Probability
Which of the following statements accurately describes Integral Leaders?
Correct Answer It is built for complexity, designed for leading change within complex systems amid volatile, ambiguous, and rapidly changing environments.
Correct Answer The leader is capable of working effectively with people of all types and with people at every stage of Leadership Development.
Correct Answer ?The Leader has the ability to hold large conflicts, opposite visions, and redundant polarities in tension without reacting to them, trying to problem-solve them, or turning them into win-lose battles.
Correct Answer The Leader is in full possession of the entire array of gifts, strengths, and competencies that are required to lead effectively.
Correct Answer ??All of the above.
In: Operations Management