In a study concerning the relationship between the use of exogenous estrogens and subsequent risk of breast cancer, a sample of 1000 pre-menopausal women was followed for 8 years. The results are presented in the table below.
|
Breast Cancer |
|||
|
Estrogen Therapy |
Present |
Absent |
Total |
|
+ |
300 |
200 |
500 |
|
- |
100 |
400 |
500 |
|
Total |
400 |
600 |
1000 |
1.What kind of study is this?
2.Is this study prospective or retrospective?
3.The cumulative incidence of breast cancer among women receiving estrogen therapy is:
4.The cumulative incidence of breast cancer among women who did not receive estrogen therapy is:
5.The relative risk associated with estrogen therapy in this study is:
In: Nursing
The miles per gallon ratings for 2001 model year vehicles vary according to an approximately Normal distribution with mean μ = 22.35 miles per gallon and standard deviation σ = 5.29 miles per gallon.
(a) What percent of vehicles have miles per gallon ratings
greater than 28?
________%
(b) What percent of vehicles have miles per gallon ratings between
28 and 31?
________%
(c) What percent of vehicles have miles per gallon ratings less
than 12.74?
_________%
In: Statistics and Probability
Prior to adjustment at the end of the year, the balance in Trucks is $298,988 and the balance in Accumulated Depreciation—Trucks is $101,200. Details of the subsidiary ledger are as follows:
|
Estimated |
Accumulated Depreciation at |
Miles Operated |
|||
|
Truck No. |
Cost |
Residual Value |
Useful Life |
Beginning of Year |
During Year |
| 1 | $85,360 | $14,940 | 251,500 miles | — | 20,400 miles |
| 2 | 51,100 | 6,040 | 300,400 miles | $14,930 | 32,500 miles |
| 3 | 76,450 | 13,830 | 202,000 miles | 61,330 | 8,100 miles |
| 4 | 86,078 | 22,520 | 235,400 miles | 24,940 | 22,300 miles |
| A. | Determine the depreciation rates per mile and the amount to be credited to the accumulated depreciation section of each of the subsidiary accounts for the miles operated during the current year. |
| B. |
Journalize the entry on Dec. 31 to record depreciation for the year. Refer to the Chart of Accounts for exact wording of account titles. |
A. Determine the depreciation rates per mile and the amount to be credited to the accumulated depreciation section of each of the subsidiary accounts for the miles operated during the current year.
**Only need help with credit accumulated depreciation**
| Truck No. | Rate per Mile | Miles Operated | Credit to Accumulated Depreciation |
| 1 | 0.28 | 20,400 | 5712 |
| 2 | 0.15 | 32,500 | 4875 |
| 3 | 0.31 | 8,100 | ????? |
| 4 | 0.27 | 22,300 | 6021 |
| Total |
B. Journalize the entry on Dec. 31 to record depreciation for the year. Refer to the Chart of Accounts for exact wording of account titles.
In: Accounting
The J. Miles Corp. has 25 million shares outstanding with a share price of $ 20 per share. Miles also has outstanding zero-coupon debt with a 5-year maturity, a face value of $ 900 million, and a yield to maturity of 9 %. The risk-free interest rate is 5 %.
a. What is the implied volatility of Miles' assets?
b. What is the minimum profitability index required for equity holders to gain by funding a new investment that does not change the volatility of Miles' assets?
c. Suppose Miles is considering investing cash on hand in a new investment that will increase the volatility of its assets by 10 %. What is the minimum NPV such that this investment will increase the value of Miles' shares?
The J. Miles Corp. has 25 million shares outstanding with a share price of $ 20 per share. Miles also has outstanding zero-coupon debt with a 5-year maturity, a face value of $ 900 million, and a yield to maturity of 9 %. The risk-free interest rate is 5 %.
a. What is the implied volatility of Miles' assets?
b. What is the minimum profitability index required for equity holders to gain by funding a new investment that does not change the volatility of Miles' assets?
c. Suppose Miles is considering investing cash on hand in a new investment that will increase the volatility of its assets by 10 %. What is the minimum NPV such that this investment will increase the value of Miles' shares?
In: Finance
The table below lists weights (carats) and prices (dollars) of randomly selected diamonds. Find the (a) explained variation, (b) unexplained variation, and (c) indicated prediction interval. There is sufficient evidence to support a claim of a linear correlation, so it is reasonable to use the regression equation when making predictions. For the prediction interval, use a 95% confidence level with a diamond that weighs 0.8 carats.
Weight Price
0.3 520
0.4 1171
0.5 1336
0.5 1425
1.0 5671
0.7 2278
In: Statistics and Probability
X= weight of copper
Y=Actual Price of Copper in (USD)
x : 0.3 0.4 0.5 0.5 1.0 0.7
y : 510 1151 1343 1410 5669 2277
(a) Find the regression equation for the data points given.
(b) Determine the percentage of variation in price of Copper y that is explained by the weight x.
(c) Is it reasonable to predict the price of a 0.8 grams of copper using this model?
(d) Is it reasonable to predict the price of a 1.5 grams of copper using this model?
This is strictly to check answers.
In: Statistics and Probability
Researchers have been studying the association between cigarette smoking and caffeine intake and
Parkinson's Disease for more than 40 years. The results of a study by Checkoway et al. (2002) follow:
Ever having smoked cigarettes resulted with an odds ratio (OR) = 0.5 (95% confidence interval (CI):
0.4, 0.8).
The OR for current smokers was OR = 0.3 (95% CI: 0.1, 0.7).
Among ex-smokers the OR = 0.6 (95% CI: 0.4, 0.9).
Interpret the three ORs (in your own words).
In: Statistics and Probability
Binomial Probabilities
A multiple-choice quiz consists of n = 10 questions in the form
True or False. Mary assumes that her comprehension level is p =
0.70, so that is the chance that she picks up a right answer. Let M
denote a number of questions Mary answered correctly. Suppose that
all TEN trials are independent.
Answer questions below using answers in the multiple-choice format.
No calculation is required here. Just recognize the proper formula
for each case.
A: (10) · (0.7) · (0.3)9
B: 1 − [(0.3)10 + (‘10) · (0.3)9 · (0.7)]
C: (10) · (0.7)9 + (0.7)10
D: (10) · (0.7)9 · (0.3)
E: 1 − [(10) · (0.7)9 + (0.7)10]
F: (0.3)10 + (10) · (0.3)9 · (0.7)
Probability that Mary has exactly NINE correct answers
Chance that Mary has at most ONE wrong answer
Probability that she correctly answers exactly ONE question
Chance that Mary has at most ONE correct answer
Probability that she has more than ONE question answered right
Chance that Mary has more than ONE wrong answer
In: Statistics and Probability
Refer below table on the average prices, how to make a decision on KL or Penang residential prices are higher than other Peninsular states? Explain in detail.
|
States |
||||||
|
Year |
Penang |
Kuala Lumpur |
Johor |
Selagor |
Negeri Sembilan |
Perak |
|
2007 |
3.9 |
6.5 |
-0.2 |
0.7 |
3.4 |
1.5 |
|
2008 |
1.9 |
5.3 |
0.7 |
0.3 |
0.9 |
3.6 |
|
2009 |
4.7 |
7.9 |
3.1 |
3.2 |
5.1 |
3.9 |
|
2010 |
6.1 |
4.4 |
-0.1 |
4.6 |
3.8 |
6.5 |
|
2011 |
4.0 |
-2.5 |
5.5 |
-0.9 |
0.5 |
0.6 |
|
2012 |
3.5 |
12.2 |
2.7 |
9 |
3.8 |
5.1 |
|
Average |
4.02 |
5.63 |
1.95 |
2.82 |
2.92 |
3.53 |
In: Economics
Please use original C++ code for this. This is for visual studio.
Program 5: Shipping Calculator
The Speedy Shipping Company will ship packages based on how much they weigh and how far they are being sent. They will only ship small packages up to 10 pounds. You have been tasked with writing a program that will help Speedy Shipping determine how much to charge per delivery.
The charges are based on each 500 miles shipped. Shipping charges are not pro-rated; i.e., 600 miles is the same charge as 900 miles; i.e., 600 miles is counted as 2 segments of 500 miles.
Here is the table they gave you:
Package Weight Rate per 500 miles shipped
2 pounds or less $1.50
More than 2 but not more than 6 $3.70
More than 6 but not more than 10 $5.35
Test Case 1:
Input Data:
Weight: 1.5 pounds
Miles: 200 miles (This is one 500-mile segment.)
Expected result:
To ship a 1.5 pound package 200 miles, your shipping charge is $1.50.
Test Case 2:
Input Data:
Weight: 5.6 pounds
Miles: 1200 miles (This is three 500-mile segments.)
Expected result:
To ship a 5.6 pound package 1200 miles, your shipping charge is $11.10.
Test Case 3:
Weight: 1.0 pounds
Miles: 2500 miles (This is five 500-mile segments.)
Expected result:
To ship a 1.0 pound package 2500 miles, your shipping charge is $7.50.
Test Case 4:
Weight: 8.5 pounds
Miles: 12345 miles (This is twenty-five 500-mile segments.)
Expected result:
To ship a 8.5 pound package 12345 miles, your shipping charge is $133.75.
Test Case 5:
Weight: 12.8 pounds
Miles: 345 miles
Expected result:
Sorry, we only ship packages of 10 pounds or less.
Hints: This program does not need any loops. The program will calculate one shipping charge and stop. Your test cases should test the various possibilities, and the limits of the program.
BIG Helpful Hint: You can use integer division. For example: 1200 / 500 = 2
Send email if you are stuck, or if there is something in this assignment that you are confused about.
Rubric:
|
Well-formatted code (indentation, use of whitespace, comments) |
10% |
|
Good variable names (proper case, meaningful identifiers) |
10% |
|
Good prompts (accurate, easy-to-use user interface) |
10% |
|
Calculations are correct |
40% |
|
Well-formatted output |
10% |
|
Screenshots showing your program running on your computer |
20% |
In: Computer Science