Questions
In a study concerning the relationship between the use of exogenous estrogens and subsequent risk of...

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?

  1. cross-sectional
  2. ecological
  3. case-control
  4. cohort

2.Is this study prospective or retrospective?

  1. prospective
  2. retrospective
  3. none of these

3.The cumulative incidence of breast cancer among women receiving estrogen therapy is:

  1. 0.2
  2. 0.3
  3. 0.4
  4. 0.6
  5. 0.8

4.The cumulative incidence of breast cancer among women who did not receive estrogen therapy is:

  1. 0.05
  2. 0.2
  3. 0.4
  4. 0.6
  5. 0.8

5.The relative risk associated with estrogen therapy in this study is:

  1. 0.25
  2. 0.33
  3. 0.5
  4. 2
  5. 3

In: Nursing

The miles per gallon ratings for 2001 model year vehicles vary according to an approximately Normal...

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...

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...

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)...

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...

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...

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...

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.

  1. A: (10) · (0.7) · (0.3)9

  2. B: 1 − [(0.3)10 + (‘10) · (0.3)9 · (0.7)]

  3. C: (10) · (0.7)9 + (0.7)10

  4. D: (10) · (0.7)9 · (0.3)

  5. E: 1 − [(10) · (0.7)9 + (0.7)10]

  6. F: (0.3)10 + (10) · (0.3)9 · (0.7)

  1. Probability that Mary has exactly NINE correct answers

  2. Chance that Mary has at most ONE wrong answer

  3. Probability that she correctly answers exactly ONE question

  4. Chance that Mary has at most ONE correct answer

  5. Probability that she has more than ONE question answered right

  6. 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...

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...

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