Explain the benefits and limitations of using :
(1) Capital Asset Pricing Model to calculate cost of equity
(2) Dividend growth model to calculate cost of equity
(3) bond plus risk premium model to calculate cost of equity
Provide a well detail answer and no copy and paste.
In: Finance
In: Finance
The Fragile-X syndrome is the most common inherited form of mental retardation in humans. The gene causing the disease has been cloned and shown to encode an RNA-binding protein that binds to a diverse yet specific pool of mRNA species in the brain. Based on what you know about RNA structure, do you think it likely that this protein binds to these RNA molecules using a similar mechanism that proteins use to bind DNA? Explain why or why not, and if not, propose another way that this protein may recognize these RNA species.
essay answer are limited to about 600 words
In: Biology
If you were creating a Public Service Announcement (PSA) to warn folks about inhalant use, which population would you choose to focus on as your PSA audience, and why? What are the three pieces of information you’d include in the PSA, and why?
In: Nursing
M8 Assessment: Testing Difference between Means (t-tests)
Concluding Statements for t-tests: These statements should always reflect back on the study and outcome, or results. Practice writing statements for each outcome in your practice problems and homework. Use the following example write-up for problems 7-10.
An [independent samples or dependent sample] t-test was conducted to determine [state the purpose of the study]. The results revealed [a significant or no significant] difference between [state the groups and/or independent variable] on [state the dependent variable] (t ([degrees of freedom]) = [enter computed value for t], p [< or >]* .05). In fact, [state each group and explain how the means compare].
*The less than (<) sign means the results are significant and the greater than (>) sign means the results are not significant.
Questions 1-3: Dr. Mackintosh believes a new olfactory therapy would be more successful in promoting weight loss among obese patients. His patients are first weighed and then randomly assigned to olfactory therapy, dance therapy, or a control condition. At the end of the three weeks, the amount of weight lost is recorded. The results indicate no significant difference in the amount of weight lost between the three conditions.
Identify the independent variable along with each level and the dependent variable.
If true differences existed between the conditions, but they were not detected, what kind of error occurred?
If differences in conditions were detected, but did not really exist, what kind of error occurred?
Questions 4-6: A sleep researcher wants to determine whether a new pillow might reduce snoring amongst patients with this type of sleep apnea. Participants are randomly assigned to use the new pillow or a control condition (regular pillow). Their sleep behavior is recorded on audiotape with time snoring. The findings indicate significantly less snoring takes place with the new pillow.
Identify the independent variable (and categories) and the dependent variable.
Explain a Type I error in terms of this study.
Explain a Type II error in terms of this study.
Questions 7-10: Compute the appropriate t-test.
A researcher interested in eating behavior wants to determine if scary movies cause people to eat more popcorn than musicals. You randomly assign 10 participants to a group that watches a scary movie (Psycho) and another 10 participants to a group that watches a musical (The Sound of Music). At the beginning of the movie, you give each participant a tub of 84 pieces of popcorn and tell each person not to share their popcorn with anyone. At the end of the movie, you measure the number of pieces of popcorn eaten by each participant. The data are shown below. Based on the results of this t-test, state the conclusions about the difference between the pieces of popcorn eaten by subjects viewing a scary movie versus a musical.
Scary Musical
X Y
45 32
67 38
69 33
56 49
73 44
56 60
63 48
84 36
49 23
56 39
An education researcher is interested in the ability of preschool children to solve math story problems. He wants to see if the method of presentation, either as verbal story problems or as visual story problems, makes a difference in preschoolers' abilities to solve the problems correctly. In an example of the verbal condition, a child is asked, "Two birds are sitting on a fence; two more birds fly down and join them. How many birds are on the fence altogether?" In an example of the nonverbal, visual equivalent of this problem, the experimenter presents the child with a picture of two birds on the fence with two birds in the process of landing on the fence and then asks the child, "How many birds are on the fence altogether?" In both conditions, the child responds orally. Shown below is the number of correct answers out of 10 problems for each child. What conclusions about the difference between a preschooler's ability to solve simple math problems presented either verbally or nonverbally can be made from these results?
Child Verbal Nonverbal
C. J. 3 6
F. K. 5 8
M. O. 7 9
I. M. 4 8
G. G. 2 4
K. T. 1 1
B. W. 4 3
M. B. 2 8
Education researchers were interested in whether the number of close friends changes between the time students enter college and the beginning of their second year of college. A sample of 12 (entering) first-year students was used to examine the question. Data for this sample are shown below.
In: Statistics and Probability
| The following selected transactions were taken from the books of Ripley Company for 2016: |
| 1. |
On February 1, 2016, borrowed $58,000 cash from the local bank. The note had a 5 percent interest rate and was due on June 1, 2016. |
| 2. | Cash sales for the year amounted to $225,000 plus sales tax at the rate of 6 percent. |
| 3. |
Ripley provides a 90-day warranty on the merchandise sold. The warranty expense is estimated to be 2 percent of sales. |
| 4. | Paid the sales tax to the state sales tax agency on $190,000 of the sales. |
| 5. | Paid the note due on June 1 and the related interest. |
| 6. |
On November 1, 2016, borrowed $36,000 cash from the local bank. The note had a 7 percent interest rate and a one-year term to maturity. |
| 7. | Paid $3,100 in warranty repairs. |
| 8. |
A customer has filed a lawsuit against Ripley for $90,000 for breach of contract. The company attorney does not believe the suit has merit. |
| Required |
| a. |
Answer the following questions: |
| 1. |
What amount of cash did Ripley pay for interest during 2016? (Round your answer nearest dollar amount.) |
| 2. |
What amount of interest expense is reported on Ripley’s income statement for 2016? (Round your answer nearest dollar amount.) |
| 3. | What is the amount of warranty expense for 2016? |
| b. |
Post the liabilities transactions to T-accounts and prepare the current liabilities section of the balance sheet at December 31, 2016. (Round your answers nearest dollar amount.) |
| c. |
Show the effect of these transactions on the financial statements using a horizontal statements model like the one shown here. Use + for increase, ? for decrease, and NA for not affected. In the Cash Flow column, indicate whether the item is an operating activity (OA), investing activity (IA), or financing activity (FA) or not affected (NA). The first transaction has been recorded as an example. |
In: Accounting
1. Assume you have just started working for a company that does not have an organizational chart that shows reporting relationships. How would you go about determining to whom your boss reports and where your department fits in the overall organization structure?
2. Describe managerial skills and behaviors that would be required to manage effectively in a functional department. Are these skills and behaviors different from those required in a product department? Please explain.
3. For what type of an organization would you prefer to work? Organic or mechanistic? Please explain.
4. Assume you are starting your own business, and want the organizational structure to be a virtual one. What are the advantages and disadvantages of creating such a virtual organization?
In: Operations Management
True or false and WHY? The theory economic development/wealth of the Mercantilists is superior to that of Cantillon or Smith.
True or false and WHY? Adam Smith's value theory is useful in resolving the paradox of value.
True or false and WHY? What Adam Smith detested about mercantilism was its focus on the founding and defense of the nation state.
True or false and WHY? Adam Smith, between the 1759 publication of The Theory of Moral Sentiments and the 1776 publication of An Inquiry Into the Nature and Causes of the Wealth of Nations, changed his mind about how the commercial world works.
The following statement by the chairman of General Motors: “What’s good for GM is good for the economy.” is sometimes cited as an example of Smith’s reasoning of the invisible hand. True or false and WHY?
Ricardo was opposed to the tariff on grain & Malthus was not. Malthus admitted it raised the price of bread but claimed the poor were better off when the price was high than when it was low. Discuss. Explain.
Under what circumstances, according to Adam Smith, might the market price of some good remain permanently above its natural price?
Illustrate the critical concepts that underpin Thomas Malthus’s theory of population.
What is the medieval concept of just price?
What are the contributions of John Locke to the moral legitimization of capitalism?
What does Adam Smith mean by wealth? Why is this so significant?
Review Smith’s argument for international free trade. How did Ricardo improve on Smith’s theory in this regard?
Review Malthus’ theory of population and the social control of its growth. Discuss the naturalistic and cultural elements of his theory.
Review and assess Ricardo’s theory of economic progress, including the tendency toward the stationary state.
Examine the role of the population doctrine in classical economic theory.
In: Economics
Define what is Critical Micelle conentration and association of surfactant? Using your explanation explain how chemical structures, temperature and electrolyte affect for both ionic and non ionic CMC.Please explain as clearly as possible because I am having a tomorrow !(use the interaction between the hydrophobic and the hydrophilic tail to explain also )
In: Chemistry
3. In the workbook on page 14, we solved the following
problem:
A new type of light bulb has been developed which is believed to
last longer than
ordinary light bulbs. To determine the average life of the new
light bulb, a random sample of
100 light bulbs was tested. The sample had a mean life of 1960
hours. Estimate the true mean
life of the new light bulb using a 97% confidence interval. State
your final conclusion using a
clear, complete sentence. Assume the population standard deviation
is 142 hours.
For the confidence interval we calculated in this workbook problem,
the confidence level
is 97%.
Using ZInterval on the calculator we found the 97% confidence
interval for the mean life
was 1929.2 to 1990.8 hours. Based on this sample, we are 97%
confident that the mean life
expectancy of all the new lightbulbs is between 1929.2 and 1990.8
hours.
The length of a confidence interval is (upper bound- lower bound).
For this
confidence interval, the length is (1990.8-1929.2) = 61.6
hours.
To find the Margin of Error, using the length of a confidence
interval, we use
EE = mmmmmmmmmmmm oooo eeeeeeeeee = llllnnnnnnnn oooo CCCC
22 . For this CI, EE = 61.6
2 = 30.8 hoooooooo.
To find the center of the CI, CCCCCCCCCCCC = (uuuuuuuuuu
bbbbbbbbbb+llllllllll bbbbbbbbbb)
2
. The center of this CI is
CCCCCCCCCCCC = uuuuuuuuuu bbbbbbbbbb+llllllllll bbbbbbbbbb
2 = 1990.8+1929.2
2 = 3920
2 = 1960 hoooooooo, which is the sample
mean. Remember every confidence interval for the population mean is
centered at the sample
mean.
(a) Now calculate confidence intervals for the mean expectancy of
all the new lightbulbs using
confidence levels of 90%, 92%, 94%, 98%, and 99%. Determine the
length, the margin of error
and center for each CI. I have filled in the information for the
97% confidence interval we
formed in the workbook.
Confidence level Confidence Interval Length of CI Margin of Error Center of CI
90%
92%
94%
97% 1929.2 to 1990.8 hours 61.6 hours 30.8
hours 1960 hours
98%
99%
(b) As the confidence level increases, what happens to the width of
the confidence interval? Use
clear, complete sentences to state and justify your answer.
(c) As the confidence level increases, what happens to the margin
of error? Use clear, complete
sentences to state and justify your answer.
(d) As the confidence level increases, what happens to the center
of the confidence interval? Use
clear, complete sentences to state and justify your
answer.
In: Statistics and Probability