a) A manager at the Kemboja Car Sales and Services Enterprise wishes to estimate the number of days it takes for his car dealer to sell a local made car model. A random sample of 50 cars was selected and the mean number of days his car dealer is able to sell a local made car is 50 days. Assume the population standard deviation is 6 days.
i) Find the best point estimate of the population mean. Find the standard error of the
mean.
ii) Calculate the 99% confidence interval of the population mean number of days a car
dealer is able to sell a local made car.
b) As an aid for improving students’ study habit, 6 students were randomly selected to attend a seminar on the importance of education in life. The table shows the number of hours each student studied per week before and after the seminar. At the 95% confidence interval, did attending seminar increase the mean number of hours the students studied per week?
Before 12 15 18 10 13 5 After 17 20 21 15 22 7
Given Σd = - 29; Σd2 = 169
In: Statistics and Probability
Consider the following two banks:
Bank 1 has assets composed solely of a 10-year, 11.75 percent
coupon, $2.1 million loan with a 11.75 percent yield to maturity.
It is financed with a 10-year, 10 percent coupon, $2.1 million CD
with a 10 percent yield to maturity.
Bank 2 has assets composed solely of a 7-year, 11.75 percent,
zero-coupon bond with a current value of $2,229,035.91 and a
maturity value of $4,851,206.79. It is financed by a 10-year, 11.00
percent coupon, $2,100,000 face value CD with a yield to maturity
of 10 percent.
All securities except the zero-coupon bond pay interest
annually.
a. If interest rates rise by 1 percent (100 basis
points), what is the difference in the value of the assets and
liabilities of each bank? (Do not round intermediate
calculations. Negative amounts should be indicated by a minus sign.
Round your answers to 2 decimal places. (e.g., 32.16))
Asset Value Liabilities Value
| Before interest rise | After interest rise | Difference | Before interest rise | After interest rise | Difference | |
| Bank 1 | ||||||
| Bank 2 |
In: Finance
|
Subject label |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
Blood pressure Reading before Drug A treatment |
XA1 |
XA2 |
XA3 |
XA4 |
XA5 |
XA6 |
XA7 |
XA8 |
XA9 |
|
Blood pressure Reading after Drug A Treatment |
YA1 |
YA2 |
YA3 |
YA4 |
YA5 |
YA6 |
YA7 |
YA8 |
YA9 |
|
Subject label |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
Blood pressure Reading before Drug B treatment |
XB1 |
XB2 |
XB3 |
XB4 |
XB5 |
XB6 |
XB7 |
XB8 |
XB9 |
|
Blood pressure Reading after Drug B Treatment |
YB1 |
YB2 |
YB3 |
YB4 |
YB5 |
YB6 |
YB7 |
YB8 |
YB9 |
ii)What test would you do to find out if Drug B is more effective than A? justify your choice with explanation. write the equation that determines the test-statistic and define all the terms.
iii) if both drugs have the same active compound but with different weight, how do you show the effect of the active compound on the effectiveness of the drug?
what are the key parameters that indicate the validity of the model in Question (iii).
In: Statistics and Probability
|
Refi Corporation is planning to repurchase part of its common stock by issuing corporate debt. As a result, the firm’s debt-equity ratio is expected to rise from 30 percent to 50 percent. The firm currently has $3 million worth of debt outstanding. The cost of this debt is 8 percent per year. The firm expects to have an EBIT of $1.29 million per year in perpetuity and pays no taxes. |
| a. |
What is the market value of the firm before and after the repurchase announcement? (Do not round intermediate calculations and enter your answers in dollars, not millions of dollars, rounded to the nearest whole number, e.g., 1,234,567.) |
| b. | What is the expected return on the firm’s equity before the announcement of the stock repurchase plan? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) |
| c. | What is the expected return on the equity of an otherwise identical all-equity firm? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) |
| d. |
What is the expected return on the firm’s equity after the announcement of the stock repurchase plan? ( |
In: Finance
AMC Corporation currently has an enterprise value of $ 450million and $ 110million in excess cash. The firm has 10million shares outstanding and no debt. Suppose AMC uses its excess cash to repurchase shares. After the sharerepurchase,news will come out that will changeAMC'senterprise value to either $ 650million or $ 250million.
a.What isAMC'sshare price prior to the sharerepurchase?
b. What isAMC'sshare price after the repurchase if its enterprise value goesup?What isAMC'sshare price after the repurchase if its enterprise valuedeclines?
c. Suppose AMC waits until after the news comes out to do the share repurchase. What isAMC'sshare price after the repurchase if its enterprise value goesup?What isAMC'sshare price after the repurchase if its enterprise valuedeclines?
d.Suppose AMC management expects good news to come out. Based on your answers to parts (b)and (c),if management desires to maximizeAMC'sultimate shareprice,will they undertake the repurchase before or after the news comesout?When would management undertake the repurchase if they expect bad news to comeout?
e.Given your answer to (d),what effect would you expect an announcement of a share repurchase to have on the stockprice?Why?
In: Finance
Income statement for the fiscal year ending January 1 (Millions of dollars)
|
2017 (Actual) |
2018 (Projected) |
||
|
Net Sales |
$400.0 |
$430.0 |
|
|
Costs |
260.0 |
283.5 |
|
|
Depreciation |
37.5 |
42.5 |
|
|
Earnings before interest and taxes |
102.5 |
104.0 |
|
|
Interest expense |
14.1 |
16.0 |
|
|
Earnings before taxes |
88.4 |
89.9 |
|
|
Taxes (40%) |
35.36 |
35.2 |
|
|
Net income before preferred dividends |
53.04 |
52.8 |
|
|
Preferred dividends |
6.0 |
6.5 |
|
|
Net income |
47.04 |
46.3 |
|
|
Common dividends |
37.632 |
38.2 |
|
|
Addition to retained earnings |
9.0408 |
8.1 |
|
Balance sheets for the fiscal year ending January 1 (Millions of dollars)
|
2017 (Actual) |
2018 (Projected) |
||
|
Cash |
$6.3 |
$6.6 |
|
|
Marketable Securities |
40.9 |
37.128 |
|
|
Accounts Receivable |
62.0 |
66.0 |
|
|
Inventories |
107.0 |
115.5 |
|
|
Net plant & equipment |
391.0 |
415.36 |
|
|
Total Assets |
607.2 |
640.58 |
|
|
Accounts payable |
9.6 |
12.1 |
|
|
Accruals |
25.5 |
29.1 |
|
|
Long-term bonds |
210.7 |
227.78 |
|
|
Preferred Stock |
55 |
57.1 |
|
|
Common Stock (Par plus PIC) |
160.0 |
160.0 |
|
|
Retained earnings |
146.4 |
154.5 |
|
|
Total Liabilities & Equity |
607.2 |
640.58 |
|
In: Finance
I am trying to start saving for retirement. I am investing all my cash into the S&P 500, which will assume consistently 9.8% interest, compounded annually. I initially put a lump sum of $100 into my account, and I will deposit $10 every second week.
a) After 10 years, how much money will I have invested?
b) After 10 years, if I sold all of my stocks, how much money will I have in my account?
c) After 25 years, how much money have I invested?
d) If I had not sold my stocks at the 10 year mark and instead held onto them an additional 15 years before selling, how much additional money would I have in my account?
In: Finance
A construction company has 3 categories of casual
workers. Category A,B and C. Workers in categories A are paid 1000
per day for first 25 days, you are paid 800 per day for less than
25 days, any extra day after 25th you are paid 1200 per day. In
categorie B you are paid 800 per day if you work for 25 days
otherwise you are paid 600 per day if you work for less than 25
days . 1000 per day for any day after 25th.
Category C 600 per day for 25 days , 400 per day for days before 25
days and 800 per day for days after 25th day
Question
1.write an algorithm
2. Translate to flowchart
3. Translate into actual program using C++
In: Computer Science
A construction company has 3 categories of casual
workers. Category A,B and C. Workers in categories A are paid 1000
per day for first 25 days, you are paid 800 per day for less than
25 days, any extra day after 25th you are paid 1200 per day. In
categorie B you are paid 800 per day if you work for 25 days
otherwise you are paid 600 per day if you work for less than 25
days . 1000 per day for any day after 25th.
Category C 600 per day for 25 days , 400 per day for days before 25
days and 800 per day for days after 25th day
Question
1.write an algorithm
2. Translate to flowchart
In: Computer Science
In a test of the effectiveness of garlic for lowering cholesterol, 45 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol (in mg/dL) have a mean of 4.2 and a standard deviation of 19.6.
Answer the following (round as indicated).
A. What is the best point estimate of the population mean net change in LDL cholesterol after the garlic treatment?
The best point estimate is ??? mg/dL.
(Type an integer or a decimal.)
B. Construct a 90% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol?
What is the confidence interval estimate of the population mean μ?
?? mg/dL < μ < ?? mg/dl
(Round to two decimal places as needed.)
In: Statistics and Probability