New

Learn smart - Learn online. Upto 88% off on courses for a limited time. View Courses

Securing Higher Grades Costing Your Pocket? Book Your Assignment at The Lowest Price Now!
loader
Add File

Error goes here

Files Missing!

Please upload all relevant files for quick & complete assistance.

Guaranteed Higher Grade!

Stuck on Your Question?

Get 24x7 live help from our Top Tutors. All subjects covered.

loader
250 words

Error goes here

Files Missing!

Please upload all relevant files for quick & complete assistance.

Students Who Viewed This Also Studied

8 Pages
Standard Deviations

Assignment Grouping Cut -offs For your assignment you need to create 3 groups for your chosen personality trait – Low, Moderate and High. The below table shows the cut off s for e ach gro ...

Course

PSYC371

Subject

Statistics

University

University of New England

Season

Fall

103 Pages
Research Report Instructions

1 Associations between Personality and Psychological Distress – Research Report Instructions Assignment type : Research Report Due: by 11:59pm on Monday 30 th August, 2021 ...

Course

PSYC371

Subject

Statistics

University

University of New England

Season

Fall

10 Pages
MAN00018H Decision and Information Analysis

Task: A penalty of five marks will be deducted for late submissions that are made within the first hour after the deadline. Submissions that are more than one hour late but within the first 24 hour ...

Course

MAN00018H

Type

Programming

Subject

Statistics

University

University of York

0 Page
Digital Presentation

...

Course

STAT6003

Subject

Statistics

University

Torrens University

Season

Fall

ETF5952 Quantitative Methods for Risk Analysis

Question

Answered

Task

Question 1 (30 points: 5+5+5+5+5+5)

This question asks you to analyze the data, “Wage”, in the ISLR package. Load the ISLR package and show variables in the data set “Wage”. Before your analysis, check variables in the data set by either reading a pdf file for ISLR at Moodle (R section) or searching on-line information.

1. Create a new variable, log of wage, and store in the data set (or data frame) “Wage”. Report summary statistics of wage and log wage.
 
2. Compare mean and median of wage, and discuss why they are different or similar (less than 30 words).
Compare mean and median of log wage, and discuss why they are different or similar (less than 30 words).

3. Obtain and provide histogram of wage and log wage, separately.

4. Conduct nonparametric bootstrap to obtain the 95% confidence intervals for the mean of wage and log wage. Set the number of repetition for Bootstrap to be 5000 (B=5000). Compare lengths of the confidence intervals and discuss uncertainty of the estimators of mean of wage and log wage (less than 30 words).

5. Obtain a box plot of wagefor each education level (education). (not log wage here)

6. Estimation two linear regression model:

1st. regressing wage on age and education level (dummies).
2nd. regressing log(wage) on log(age) and education level (dummies).

Provide the estimation results.

(a) Interpret effects of age on wage at the first regression (less than 30 words).
(b) Interpret effects of post graduate education (Advanced Degree) on wage at the first regression (less than 30 words).
(c) Interpret effects of age on wage at the second regression (less than 30 words).

Question 2 (40 points=10+10+10+10)

In this question, you analyze a data set on the number of new infections (positive cases) in Australia. Use the data set, “aus covid.csv”, which includes four variables:
  • time is a sequence from 1 to 77 in order.
  • date is a variable of date.
  • case is the number of new positive cases.
  • lag.case is a lagged case with one day.
1. Obtain and present a time-series plot, in which x-axis is time and y-axis is case. Use a red line.

2. Estimate the following models: 
  • case = β0 + β1time + ,
  • case = β0 + β1time + β2time2 + .
(a) For each regression, plot fitted values (a blue line) with a time-series plot (a red line).

(b) From the two plots, explain performance of the two models.

(c) Obtain and provide autocorrelation function of residuals from two regressions. Explain the result (less than 30 words).

3. Estimate autoregressive models
  • case = β0 + αlag.case + β1time + ,
  • case = β0 + αlag.case + β1time + β2time2 + .
(a) Report the estimation results and explain the autoregressive parameter, α (less than 30 words).

(b) Plot and present fitted values from each regression (blue) with a time-series plot (red), separately. Explain performance of the two models (less than 50 words).

(c) Obtain and provide autocorrelation function of residuals from two regressions. Explain the result (less than 50 words).

4. Use information criteria (AIC, AICc and BIC) to compare four models. Report the result and explain the best model according to information criteria (less than 30 words).

Question 3 (30 points=6+6+6+6+6)

For this question, use a data set, “spam.csv”, which was used in class. Here, the dependent variable is spam, which takes 1 for a spam email and 0 otherwise, and the remaining variables are potential regressors. For regression, consider the logit model (“binomial” option).

1. Apply forward stepwise procedure to select regressors (Hint: use function step). Report the number of variables selected by the procedure.

2. Obtain and report R2 for two logit models with all available regressors and the regressors selected by the forward stepwise procedure.

3. By using cross-validation, compare the full model and the model selected by the forward stepwise procedure. Report the result and explain which model is better.

4. By using information criteria (AIC, AICc and BIC), compare the full model and the model selected by the forward stepwise procedure. Report the result and explain which model is better.
 
5. Use lasso to estimate a regression model. Report the number of non-zero coefficients.

ETF5952 Quantitative Methods for Risk Analysis

Answer in Detail

Solved by qualified expert

Get Access to This Answer

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Amet dictum sit amet justo donec enim diam vulputate ut. Neque convallis a cras semper auctor neque vitae. Elit at imperdiet dui accumsan. Nisl condimentum id venenatis a condimentum vitae sapien pellentesque. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Malesuada fames ac turpis egestas maecenas pharetra convallis posuere. Et ultrices neque ornare aenean euismod. Suscipit tellus mauris a diam maecenas sed enim. Potenti nullam ac tortor vitae purus faucibus ornare. Morbi tristique senectus et netus et malesuada. Morbi tristique senectus et netus et malesuada. Tellus pellentesque eu tincidunt tortor aliquam. Sit amet purus gravida quis blandit. Nec feugiat in fermentum posuere urna. Vel orci porta non pulvinar neque laoreet suspendisse interdum. Ultricies tristique nulla aliquet enim tortor at auctor urna. Orci sagittis eu volutpat odio facilisis mauris sit amet.

Tellus molestie nunc non blandit massa enim nec dui. Tellus molestie nunc non blandit massa enim nec dui. Ac tortor vitae purus faucibus ornare suspendisse sed nisi. Pharetra et ultrices neque ornare aenean euismod. Pretium viverra suspendisse potenti nullam ac tortor vitae. Morbi quis commodo odio aenean sed. At consectetur lorem donec massa sapien faucibus et. Nisi quis eleifend quam adipiscing vitae proin sagittis nisl rhoncus. Duis at tellus at urna condimentum mattis pellentesque. Vivamus at augue eget arcu dictum varius duis at. Justo donec enim diam vulputate ut. Blandit libero volutpat sed cras ornare arcu. Ac felis donec et odio pellentesque diam volutpat commodo. Convallis a cras semper auctor neque. Tempus iaculis urna id volutpat lacus. Tortor consequat id porta nibh.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Amet dictum sit amet justo donec enim diam vulputate ut. Neque convallis a cras semper auctor neque vitae. Elit at imperdiet dui accumsan. Nisl condimentum id venenatis a condimentum vitae sapien pellentesque. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Malesuada fames ac turpis egestas maecenas pharetra convallis posuere. Et ultrices neque ornare aenean euismod. Suscipit tellus mauris a diam maecenas sed enim. Potenti nullam ac tortor vitae purus faucibus ornare. Morbi tristique senectus et netus et malesuada. Morbi tristique senectus et netus et malesuada. Tellus pellentesque eu tincidunt tortor aliquam. Sit amet purus gravida quis blandit. Nec feugiat in fermentum posuere urna. Vel orci porta non pulvinar neque laoreet suspendisse interdum. Ultricies tristique nulla aliquet enim tortor at auctor urna. Orci sagittis eu volutpat odio facilisis mauris sit amet.

Tellus molestie nunc non blandit massa enim nec dui. Tellus molestie nunc non blandit massa enim nec dui. Ac tortor vitae purus faucibus ornare suspendisse sed nisi. Pharetra et ultrices neque ornare aenean euismod. Pretium viverra suspendisse potenti nullam ac tortor vitae. Morbi quis commodo odio aenean sed. At consectetur lorem donec massa sapien faucibus et. Nisi quis eleifend quam adipiscing vitae proin sagittis nisl rhoncus. Duis at tellus at urna condimentum mattis pellentesque. Vivamus at augue eget arcu dictum varius duis at. Justo donec enim diam vulputate ut. Blandit libero volutpat sed cras ornare arcu. Ac felis donec et odio pellentesque diam volutpat commodo. Convallis a cras semper auctor neque. Tempus iaculis urna id volutpat lacus. Tortor consequat id porta nibh.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Amet dictum sit amet justo donec enim diam vulputate ut. Neque convallis a cras semper auctor neque vitae. Elit at imperdiet dui accumsan. Nisl condimentum id venenatis a condimentum vitae sapien pellentesque. Imperdiet massa tincidunt nunc pulvinar sapien et ligula. Malesuada fames ac turpis egestas maecenas pharetra convallis posuere. Et ultrices neque ornare aenean euismod. Suscipit tellus mauris a diam maecenas sed enim. Potenti nullam ac tortor vitae purus faucibus ornare. Morbi tristique senectus et netus et malesuada. Morbi tristique senectus et netus et malesuada. Tellus pellentesque eu tincidunt tortor aliquam. Sit amet purus gravida quis blandit. Nec feugiat in fermentum posuere urna. Vel orci porta non pulvinar neque laoreet suspendisse interdum. Ultricies tristique nulla aliquet enim tortor at auctor urna. Orci sagittis eu volutpat odio facilisis mauris sit amet.

Tellus molestie nunc non blandit massa enim nec dui. Tellus molestie nunc non blandit massa enim nec dui. Ac tortor vitae purus faucibus ornare suspendisse sed nisi. Pharetra et ultrices neque ornare aenean euismod. Pretium viverra suspendisse potenti nullam ac tortor vitae. Morbi quis commodo odio aenean sed. At consectetur lorem donec massa sapien faucibus et. Nisi quis eleifend quam adipiscing vitae proin sagittis nisl rhoncus. Duis at tellus at urna condimentum mattis pellentesque. Vivamus at augue eget arcu dictum varius duis at. Justo donec enim diam vulputate ut. Blandit libero volutpat sed cras ornare arcu. Ac felis donec et odio pellentesque diam volutpat commodo. Convallis a cras semper auctor neque. Tempus iaculis urna id volutpat lacus. Tortor consequat id porta nibh.

23 More Pages to Come in This Document. Get access to the complete answer.

With a pool of 3000+ homework helper, MyAssignmenthelp.com has been successfully providing homework help services for over a decade now. We have become the best homework solver online with years of experience in academic writing. Our experts have played a vital role behind our overwhelming success. Their knowledge and commitment to provide high quality homework assistance has gained us the status of best homework help provider in this industry. Our services have satisfied the needs of many students so far who often search can someone write my homework online.

More ETF5952 ETF5952 Quantitative Methods for Risk Analysis: Questions & Answers

Q
icon

We aren't endorsed by this University

Standard Deviations

Assignment Grouping Cut -offs For your assignment you need to create 3 groups for your chosen personality trait – Low, Moderate and High. The below table shows the cut off s for e ach groups Cate gory Extraversion Neuroticism Low 3.38 3.37 Note: This information bel ...

View Answer
Q
icon

We aren't endorsed by this University

Research Report Instructions

1 Associations between Personality and Psychological Distress – Research Report Instructions Assignment type : Research Report Due: by 11:59pm on Monday 30 th August, 2021 Word length: • PSYC371 students: 2,000 words (+/ - 10%) • PSYC471 students: 2, 250 wo ...

View Answer
Q
icon

We aren't endorsed by this University

MAN00018H Decision and Information Analysis

Task: A penalty of five marks will be deducted for late submissions that are made within the first hour after the deadline. Submissions that are more than one hour late but within the first 24 hours of the deadline will incur a penalty of ten marks. After the first 24 hours have passed, ten marks ...

View Answer
Q
icon

We aren't endorsed by this University

Digital Presentation

...

View Answer

Content Removal Request

If you are the original writer of this content and no longer wish to have your work published on Myassignmenthelp.com then please raise the content removal request.

Choose Our Best Expert to Help You

icon

5% Cashback

On APP - grab it while it lasts!

Download app now (or) Scan the QR code

*Offer eligible for first 3 orders ordered through app!

screener
ribbon
callback request mobile
Have any Query?