An investor puts 30% of his funds into Company A’s shares and 70% of his funds into
Company B’s shares.
The expected return on Company A’s shares is 12% and the expected return on Company B’s shares is 20%. The standard deviation of returns on Company A is 10% and the standard deviation of returns on Company B is 22%.
Required:
a) If the correlation coefficient is +0.7 what does this mean?
b) Calculate the expected return, variance and standard deviation of the portfolio?
c) Using the same information, repeat part b), but this time with a correlation coefficient of (-0.7)
In: Finance
You are considering opening a drive-in movie theater and running it for ten years. You have spent after-tax $10,000 researching the land that will be used for theater, but if you take the project you expect to incur another immediate after-tax expense of $20,000 as you work with a consulting firm to decide how to most efficiently run the business.
The project entails an immediate $100,000 capital expenditure, which can be depreciated over 10 years. You expect to sell this capital investment for $25,000 at the end of the ten year project. Working capital expenses for the project are $50,000 immediately, $40,000 incurred two years from today, both of which are fully recovered in ten years (at the end of the project).
The project’s operating costs are expected to be $100,000 for each of the first five years and then (starting between t=5 and t=6) grow at -5% per year through the end of the project (i.e., through t=10). You expect the project’s revenues to start at $100,000 starting one year from today and remain constant for the life of the project.
In: Finance
Sophie Bradford is the manager of Anthem's traditional Sunday Flicks, sponsored by the Anthem Student Association. The admission price is deliberately set at a very low $ 3.5. Each Sunday, a film has two showings and a maximum of 1,600 tickets can be sold for each showing. The rental of the auditorium is $ 280 and labor is $455,including $120 for Bradford.Bradford must pay the film distributor a guarantee, ranging from $ 270 to $ 800, or 40% of gross admission receipts, whichever is higher. Before and during the show, she sells refreshments; these sales average 10% of gross admission receipts and yield a contribution margin of 50 %.
Requirement 1: On June 3, Bradford screened The Descendants. The film grossed $10,500. The guarantee to the distributor was $700 or 40% of gross admission receipts, whichever is larger. What operating income was produced for the student association.
Requirement 2: Recompute the results if the film grossed $1,400
Requirement 3: The "four-wall" concept is increasingly being adopted by movie producers. In this plan, the movie's producer pays a guaranteed fixed rental to the theater owner for, say, a week's showing of a movie and the producer receives the ticket receipts less the fixed rental. As a theater owner, how would you evaluate a "four-wall" offer?
In: Accounting
art major x=86 x=80 s=4 theater major x=88 x=84 s=6 find the z score for each student b. based on the z score which student performed better within their class c. Find the coefficient of variation for both art and theater classes d. which class was more variable. 3. A landscaper wishes to use several different types of plants. The categories include color (red, yellow, and green), type (flowers and shrubs}, and height (tall, medium and short). how many different combinations can he/she use if she selects one color, one type and one height
4. In a recent study, the following data was obtained in response to the question, do not favor recycling in your neighborhood
No Yes No Opinion
Males 35 20 25
Female 15 25 20
If a person is picked at ramdom
a. what is the probability that the person is either male or has no opinion
b. male given they have no opinion
c. male with opinion
d. has no opinion given they are male
e. a female and a No
f. a No given they are female
g. either female or is a Yes
h. No opinion given they are female
In: Statistics and Probability
1. Compare and contrast the fields of clinical psychology and counseling psychology. Describe each specialization. In what ways are they similar? In what ways do they differ? Include three similarities and three differences in your answer.
2. When psychologists conduct scientific studies, they have one of three goals: to describe, to correlate, or to experiment. Describe each goal, including how they differ from one another.
3. You're sitting in the theater watching a movie when the fire alarm goes off. You jump and get out of your seat to leave the theater, but the alarm stops and an announcement is made that the alarm was unintentional and there is no emergency. You calm down and go back to enjoying your movie.
Name and explain the roles of the divisions of the autonomic nervous system in your responses.
4. Explain two ways in which the left and right hemispheres of the cerebrum differ in function.
5. Define and differentiate between sensation and perception. Use an example to illustrate your descriptions. Be sure to use the term that describes the conversion of environmental energy into neural signals.
6. Define and differentiate between bottom-up and top-down processing. Give an example of each in a single sensory experience.
In: Psychology
2. I stand outside the student union and conduct a poll of passing students about their favorite fast food place. There are 6 response options = McDonald's, Wendy's, Burger King, Taco Bell, Popeye's, and Arby's. I also collect the student's year in school for demographic purposes - 5 levels - First Year, Sophomore, Junior, Senior, and Grad Student. I build a two-way table of this data to prepare to conduct a Chi-square analysis. How many degrees of freedom would my analysis have?
Group of answer choices:
6
35
20
5
1
3. The expected values for a Chi-Square Test of Independence come from:
Group of answer choices:
the population values
the marginals
a chi-square table
4. I conduct the Chi-Square test of independence for my Fast Food poll and obtain an observed Chi-square value of 22.55. The chisq-test() in R also reports a p-value of 0.3114. How do I interpret this result if my alpha is 0.05?
Group of answer choices
I fail to reject the null hypothesis and therefore determine that there is a significant association between fast food preference and class year.
I fail to reject the null hypothesis and therefore conclude that there is no association between class year and favorite fast food restaurant.
I reject the null hypothesis and conclude that there is a significant association between fast food preference and class year.
I reject the null hypothesis and conclude that there is no association between the variables fast food preference and class year.
5. My student union poll included another question regarding the preference for different dog breeds. I find a significant association between preferred dog breeds and gender of the students. I calculate a Cramer's V test and get a result of 0.05. What conclusion would I make about this result?
Group of answer choices:
The Cramer's V score disproves our statistical significant finding.
The Cramer's V value further proves that the result is significant.
The result was statistically significant, but not substantively significant.
6. I decide to conduct another poll outside the student union, and I want to ensure that my poll will have a low probability of Type II error and will be able to detect a difference with a large effect size. I run the following code:
pwr.chisq.test(w = 0.3, N=NULL, df = 20, sig.level = 0.05, power = 0.8)
I get the following output in R:
Chi squared power calculation
w = 0.3
N = 232.8977
df = 20
sig.level = 0.05
power = 0.8
What does this output tell me about how I need to design my next poll.
Group of answer choices
My new poll needs a power of 0.8 to have an effect size of 0.3.
A sample size of 230 should be sufficient for my poll.
Since I set my sample size at 233 I will achieve a power of 0.8.
I need a sample size of 233 students to obtain a result with the power I desire to have in my analysis.
7. The area under the curve of a normal distribution is equal to:
Group of answer choices
the mean of the distribution
a probability of 1.0
the standard deviation of the distribution.
the z-score
8. In my student union poll I asked students what they scored on the SAT. I know that the mean score of the UMD population is 1340 with a standard deviation of 222. My friend wants to know how her score of 1280 stacks up to the distribution of all scores at UMD.
What is her z-score?
Group of answer choices
-0.53
-1
0.27
-0.27
9. Another friend asked me to calculate his z-score so he could see how he compared to the distribution of SAT scores among UMD students. I found that his z-score was 0.33. What is the interpretation of his z-score?
Group of answer choices
He scored 3 SDs higher than the mean.
He scored better than 33% of students at UMD.
His SAT score shows he was 1/3 of an SD above the mean score.
He did worse than 33% of students at UMD.
10. We have more fitness test data from Vitor (who is male) and Manuela (who is female), who are applying to a military academy. Vitor did 50 push-ups in a minute, while Manuela only did 45.
We know that among previous applicants to the academy, the distribution of number of sit-ups is as follows:
Males have a mean of 60 and a standard deviation of 6.5.
Females have a mean of 40 and a standard deviation of 4.3.
What is the z-score for Manuela's result on the test?
Group of answer choices
1.16
1.69
-0.92
3.49
11. Vitor did 50 push-ups in a minute, while Manuela only did 45.
We know that among previous applicants to the academy, the distribution of number of sit-ups is as follows:
Males have a mean of 60 and a standard deviation of 6.5.
Females have a mean of 40 and a standard deviation of 4.3.
What is the z-score for Vitor's result on the test?
Group of answer choices:
0
2.33
-1.16
-1.54
12. Vitor did 50 push-ups in a minute, while Manuela only did 45.
We know that among previous applicants to the academy, the distribution of number of sit-ups is as follows:
Males have a mean of 60 and a standard deviation of 6.5.
Females have a mean of 40 and a standard deviation of 4.3.
Relative to their gender, who did better on the push-up test, Vitor or Manuela?
Group of answer choices:
Manuela
Vitor
In: Math
ABC Hotel is a 390-room economy hotel in downtown St. Louis. After taking physical inventory of the laundry chemicals on May 31st, the assistant controller found that:
In the Main Storeroom
In the Laundry Room
The beginning inventory for laundry supplies on May 1st was $6,051.75. Purchase of laundry chemicals on May 9th totaled $890.15. The hotel sold 9,067 rooms for the month at an average daily rate of $65.10. Please calculate the laundry chemical cost percentage for the month. Please round all answers to two decimal places.
First please calculate total ending inventory $___
2. Please use the information in Question 1 to calculate the cost of laundry supplies used. Round all answers to two decimal places.
Cost of laundry supplies used $___
3.Please use the information in Question 1 to calculate the monthly rooms revenue. Round all answers to two decimal places.
Monthly rooms revenue $___
4. Please use the information in Question 1 to calculate the laundry cost percentage. Round all answers to two decimal places.
Laundry cost percentage ___%
5. Calculate the net food cost percentage for the Food department of a hotel for the month of May. The total food sales revenue for May was $191,118. The following information has been gathered:
To earn full credit, please calculate these amounts. Except as indicated below, answers are whole numbers. Be sure to include a minus sign (-) for any negative amounts:
First calculate gross cost of food sales $___
In: Accounting
Georges Hotel has the following sales procedures: The hotel uses duplicated and pre-numbered guest checks to record customers’ orders; the manager is in charge of monitoring the guest checks. She stores them in a storage container which is kept locked until she is ready to issue them to the servers. At the beginning of each shift, the manager issues the guest checks to the servers and records the amount given to each person on a blank sheet of paper. The server takes the order from the customers and records the information on the guest checks. She then presents the kitchen with one copy of the guest check for them to prepare the order and she keeps the other copy to be handed in at the end of the shift. The server informs the cashier of the order by word of mouth. In the event that there were any errors during the shift, servers are allowed to destroy the guest checks.
1. Identify three problems in the sales procedure of the Hotel, explain how they could be detrimental and suggest a control procedure that could be used to address each problem
2. Name three key personnel normally involved in a Hotel’s front office accounting functions. Of the three, chose one and briefly describe their role.
In: Accounting
Write in java
The submission utility will test your code against a different input than the sample given.
When you're finished, upload all of your .java files to Blackboard.
Grading:
Each problem will be graded as follows:
0 pts: no submission
1 pts: submitted, but didn't compile
2 pts: compiled, but didn't produce the right output
5 pts: compiled and produced the right output
Problem 1: "Letter index"
Write a program that inputs a word and an unknown number of indices and prints the letters of the word corresponding to those indices. If the index is greater than the length of the word, you should break from your loop
Sample input:
apple 0 3 20
Sample output:
a
l
Problem 2: "Matching letters"
Write a program that compares two words to see if any of their letters appear at the same index. Assume the words are of equal length and both in lower case. For example, in the sample below, a and e appear in both words at the same index.
Sample input:
apple andre
Sample output
a
e
Problem 3: "Word count"
You are given a series of lowercase words separated by spaces and ending with a . , all one on line. You are also given, on the first line, a word to look up. You should print out how many times that word occured in the first line.
Sample input:
is
computer science is no more about computers than astronomy is about telescopes .
Sample output:
2
Problem 4: "Treasure Chest"
The input to your program is a drawing of a bucket of jewels. Diamonds are represented as @, gold coins as $, rubies as *. Your program should output the total value in the bucket, assuming diamonds go for $1000, gold coins for $500, and rubies for $300. Note that the bucket may be wider or higher than the bucket in the example below.
Sample input:
|@* @ |
| *@@*|
|* $* |
|$$$* |
| *$@*|
-------
Sample output:
$9900
Problem 5: “Speed Camera”
Speed cameras are devices that monitor traffic and automatically issue tickets to cars going above the speed limit. They work by comparing two pictures of a car at a known time interval. If the car has traveled more than a set distance in that time, the car is given a citation.
The input are two text representations of a traffic picture with a car labeled as letters “c” (the car is moving upwards. These two pictures are shot exactly 1 second apart. Each row is 1/50 of a mile. The car is fined $10 for each mile per hour over 30 mph, rounded down to the nearest mph. Print the fine amount.
Sample input:
|.|
|.|
|.|
|.|
|c|
---
|.|
|c|
|.|
|.|
|.|
Sample output:
$1860
Problem 6. Distance from the science building
According to Google Maps, the DMF science building is at GPS coordinate 41.985 latitude, -70.966 longitude. Write a program that will read somebody’s GPS coordinate and tell whether that coordinate is within one-and-a-half miles of the science building or not.
Sample input:
-70.994
41.982
Sample output:
yes
At our position, 1 1/2 miles is about .030 degrees longitude, but about .022 degrees latitude. That means that you should calculate it as an ellipse, with the east and west going from -70.936 to -70.996, and the north and south going from 41.963 to 42.007.
Hint: Use the built in Ellipse2D.Double class. Construct a Ellipse2D.Double object using the coordinates given, and then use its "contains" method.
Problem 7: "Palindrome Numbers"
A palindrome is a word that reads the same forwards and backwards, such as, for example, "racecar", "dad", and "I". A palindrome number is the same idea, but applied to digits of a number. For example 1, 121, 95159 would be considered palindrome numbers.
The input to your program are two integers start and end. The output: all of the palindrome numbers between start and end (inclusive), each on a new line.
Sample input:
8 37
Sample output:
8
9
11
22
33
Hints:
1. Start by writing and testing a function that takes a number and returns true/false if the number is a palindrome. Then call that function in a for loop.
2. To see if a number is a palindrome, try turning it into a string. Then use charAt to compare the first and last digits, and so on.
In: Computer Science
Mobon Oil company owns a lease that entitles it to explore for oil on a parcel of offshore land in California. Since the lease is about to expire Mobon must now decide whether to drill for oil at the site or to sell the lease to exxil oil company, which has just offered Mobon $50,000. Mobon estimates it would cost $100,000 to drill at the site. If the well were dry, all this cost would be lost. If the well were successful, its value to Mobon would depend on the extent of the oil discovered. For simplicity, Mobon assumes there are only two types of successful wells: minor and major success. Mobon estimates that a minor success would result in revenues of $200,000 in excess of the drilling cost, whereas a major success would result in revenue of $500,000 in excess of the drilling cost. Mobon has assessed the following probabilities: If the well is dry then the probability is 0.7, if it is a minor success the probability is 0.2, and if it is a major success the probability is 0.1.
A) construct an appropriate payoff matrix, B) Using the maximax criterion, identify the optimal decision C) Using the maximin criterion, identify the optimal decision D) Using the minimax criterion, identify the optimal decision E) Using the EMV criterion, identify the optimal decision F)Using the expected regret criterion identify the optimal decision and verify that same as e G)Grow a decision tree, prune the tree using EMV criterion and verify same optimal decision as e
In: Statistics and Probability