Using rscript
Let us assume that the credit rating of a company determines yield to maturity (YTM) of the bond. This leaves you now with three different YTM: 2% for AAA, 4% for AA, 8% for others. You want to run the following commends. If the credit rating is AAA, print “YTM of the bond is 2%.” If the credit rating is AA, print “YTM of the bond is 4%.” If the credit rating is neither AAA nor AA, print “YTM of the bond is 8%.” Somebody already wrote the following code for you, and you have to complete the next lines. bond.rating <- "A" a) To run the commends above, use if....else statement. b) To run the commends above, use if....else if statement.
In: Computer Science
A US airline company will purchase 400,000 gallons of jet fuel after one month and the company wants to
do cross hedging using heating oil futures. The standard deviation of monthly changes in the spot price of
jet fuel is (in cents per gallon) 300; the standard deviation of monthly changes in the futures price for the
heating oil futures contract is (in cents per gallon) 407. The coefficient of correlation between the jet fuel
price changes and the futures price changes is 0.75. Each heating oil futures contract is for delivery of 2,000
gallons of heating oil. The current spot price of jet fuel is $1.55 per gallon and the futures price of heating oil is
$1.97 per gallon. What is the optimal number of contracts with tailing adjustment?
In: Finance
1.Which of the following is not a characteristic of a binomial random variable?
a. n identical trials
b. probability of failure is the same for each trial
c. non-correlated outcomes for each trial
d. non of the above
2. Which of the following are not binomial random variables(multiple answers)
a. one hundred randomly selected individuals are asked about their opinion on health insurance
b. one hundred people at a bar are asked about whether they are for or against restricting the sale of alcohol
c. one hundred randomly selected people are asked if they are in favor of a single payer health care system
d. one hundred randomly selected individuals are asked abut their marital status
3. Supposed that the probability of a randomly selected individual developing side effects from a new diet is 20%. If ten subjects are testing the diet, what is the probability that exactly 3 individuals develop side effects? (enter your answer as follows: 10.1%)
4. Suppose that the probability of a randomly selected individual developing side effects from a new diet is 20%. If ten subjects are testing the diet, what is the probability that at most 3 individuals develop side effects? (enter your answer as follows: 10.1%)
5. Suppose that the probability of a randomly selected individual developing side effects from a new diet is 20%. What is the expected number of subjects that would develop side effects if 500 individuals tested the diet?
6. Suppose that the probability of a randomly selected individual developing side effects from a new diet is 20%. Would it be unusual if only 35 out of 400 individuals trying the diet developed side effects?
a. yes, since the probability of 35 cases out of 400 is less than 1%
b. yes, since the 35 cases are more than two standard deviation from the mean
c. all of the above
d. none of the above
In: Math
It is suggested that the average IQ of top civil servants,
research scientists and professors is 140. Suppose that the
standard deviation is 5.
a. Suppose a full professor from a Canadian university is selected
at random. What is the probability that the IQ of the selected
Canadian professor is below 130? State any necessary assumptions
you have made to compute this probability.
b. Suppose that the assumption(s) made in part a was not justifiable. A researcher decided to take a random sample of 81 full professors from the Canadian University system.
i. What is the sampling distribution of the sample mean ¯ x ? Explain.
ii. Find the mean and standard deviation of the sampling distribution of ¯ x.
iii. What is the probability that the sample average of this sample is less than 130? Compare your answer with the answer given in a. Summarize your findings.
iv. Will the probability in (iii) change if you change the wording from “less than” to “less than or equal to”? Why or why not?
v. Can you compute the probability that the sample average IQ is exactly 135? Justify your answer.
vi. If the sample mean ¯ x is actually actually 130, what can be said about the claim that µ = 140.
vii. What is the probability that the sample mean differs from the population mean by more than 2?
viii. Within what limits do you expect the sample average to be
with the probability 0.95?
In: Statistics and Probability
This annual figure from #3 ($16,509.66) is more than the Prof.’s current annual contribution, which makes her feel a little anxious about her future planned retirement. Also, Prof. Business’ annual retirement account contribution is based on a percentage of her salary and will increase as her salary increases. So, let’s re-plan her retirement income. Let’s account for the fact that her and the University’s contributions to Prof. Business’ University retirement plan are based on a certain percentage of her salary and will increase as her salary increases. Based on this formula, her first upcoming end of the year deposit will be $20,200 and let’s assume that her annual deposit and salary will grow at a 2% annual rate over the remaining 7 years (8 total deposits) to Prof. Business’ retirement. These deposits are in addition to the $640,000 she currently has today in the University retirement plan. The Rate of Return is 7.50%. Answer the following based on these assumptions using Excel.
a) How much money will Prof. Business have in her retirement account immediately after her last deposit 8 years from today?
b) What would be the equal annual payment from her 20-year retirement annuity whose first payment occurs exactly 8 years from today?
In: Finance
1. According to Bryson, what is “boundary work” and who does it?
| it is the drawing of congressional districts; legislators do it |
| it is the establishment of qualifications for jobs; employers do it |
| it is the establishment of boundaries against those we dislike; we all do it |
| it is the establishment of career ladders within firms; employers do it |
2. For Americans in general, the most liked genres of music are ____ and the most disliked genres are ____.
| jazz and classical; oldies and easy listening |
| oldies and country; show tunes and bluegrass |
| jazz and classical; gospel and country |
| oldies and country; heavy metal and rap |
3. According to Bryson, which of the following best describes the musical tastes of highly educated, upper middle class Americans?
| they dislike all genres of popular music and listen only to classical music |
| they dislike far fewer musical genres than people from lower classes |
| they like all musical genres, but especially like country and gospel |
| they like all musical genres, but especially like heavy metal and rap |
4. According to Bryson, what characteristic is shared by those people who listen to the genres of music that are least tolerated by the "tolerant" people in her study?
| they have below average levels of education |
| they are older |
| they are less exclusive in their musical tastes (i.e., tend to listen to all kinds of music) |
| they listen to the most popular types of music |
5. Based on Bryson’s findings and what you have learned about social stratification, how might boundary work affect inequality?
| boundary work reduces inequality, because everyone does boundary work |
| boundary work reproduces inequality, because "gatekeepers" tend to exclude those whose tastes or dispositions differ from their own |
| boundary work reduces inequality, since all who achieve the same level of education gain admission into the elite |
| boundary work reduces inequality, because the yardsticks that members of the elite apply to the rest of us vary widely from member of the elite to another |
In: Psychology
Q1.
Being a student of Insurance Accounting, you must be aware of the term Loss reserve that is an estimate of an insurer’s liability from future claims. Loss reserves are typically comprised of liquid assets, and they allow the insurer to cover claims made against policies that it underwrites. While estimating the loss reserves what factors does insurance company takes into account. Discuss also the Components of Loss Reserves.
Q2.
The primary role of a Loss Reserve Specialist is to opine on the adequacy of the loss and loss expense provisions, reflected in insurers’ statutory financial statements. What Criteria that can be considered in determining whether an individual qualifies as a loss reserve specialist.
Q3.
State the factors to be taken into considerations for loss reserve auditing procedures.
In: Accounting
For this question you must calculate the deviations from the average, the manual correlation calculation and cross check it with Excel's correl function. Furthermore, you will generate the scatterplot graph, along with the trendline. Indicate whether there is a strong/weak/no correlation between the two variables.
Question :
Fair Isaac, the company that developed the credit score (FICO) model used by most lenders today, would like to test the linear relationship between age and credit score of an individual. The follow table shows the credit scores and ages of 10 randomly selected individuals:
AGE: 36 24 54 28 31 47 35 59 40 42
FICO: 675 655 760 615 660 790 720 760 685 610
In: Statistics and Probability
Scenario: Susan, a recruiting manager, asks Beth, one of her employees and an experienced recruiter, to begin the process of opening a new position at their company.
Beth calls Susan and tells her that she will not open the position, since she doesn’t feel it’s her responsibility. Susan tells Beth that she can assign this task to any of the 17 recruiters on the team. Beth continues to voice her unwillingness to do what’s asked of her.
-What steps or techniques would you use to get the participants from position to interest? Consider the facts of the conflict and be specific.
-Describe and provide examples of the role each individual played and identify their responsibilities in the conflict?
-What concepts would you apply to ensure a collaborative environment?
In: Psychology
For the past several weeks, Adele Delgado, payroll manager for Petrillo Packing Company, has been studying the mounting costs of accrued vacations and sick leave. Most of her firm’s employees are entitled to two weeks’ vacation each year and the privilege of accruing their vacation time for future use. Also, the workers have a generous sick-leave plan that reimburses them while they are ill at home or in the hospital.
Scanning the employees’ accrued vacation times on the computer printout, Delgado notes the line entry for John Mannick. Mannick recently retired and cashed in 14 weeks of accrued vacation—all paid at his current wage, which was much more than when he originally earned the vacations. And, of course, the firm’s payroll taxes for the accrued vacation payout were significantly increased.
Delgado also knows that some workers feel shortchanged if they do not use their sick leave each year. They realize that if the leave is not used, they lose it for that year. Probably, she thinks, this accounts for those who regularly become ill on Mondays or Fridays.
What solutions can you offer to limit the cost of and more effectively manage the firm’s policies for compensated leave time?
In: Accounting