Category | Assignment | Subject | Business |
---|---|---|---|
University | The Hang Seng University of Hong Kong | Module Title | AMS2320 Business Regression Analysis |
Assessment Title | Assignment 1 |
---|---|
Academic Year | 2024-25 |
There are two questions. Please answer all questions and show your steps clearly. Correct your numerical answers to 4 decimal places. You may use SAS and/or R to do the calculations. Please include the program codes in your answer script. Combine all materials in a single PDF file with the file name: AMS2320 Assignment 1 - [StudentID].pdf (e.g. AMS2320 Assignment 1 - s123456.pdf) and submit it via Moodle.
Question 1. Consider the following hypothetical data on rainfall and crop yield
(a)[5 marks] Obtain a scatter plot for the variables rainfall (x-axis) and crop yield (y-axis).
Consider the simple linear regression model
(Yield)=β0+β1 (Rainfall) +Error .(0.1)
Here, we assume that the error terms are independent Normal random variables N (0, σ2 ) with unknownσ2.
(b)[5 marks] Obtain the least square estimate of (β0, β1 ).
(c)[5 marks] Obtain 95% confidence intervals forβ0andβ1 .
(d)[5 marks] Give an estimate ofσ2 .
(e)[5 marks] Construct the corresponding ANOVA table.
Consider another regression model
(Yield)=α0+α1(Rainfall) +α2 (Rainfall)2 +Error .(0.2)
Here, we assume that the error terms are independent Normal random variables N (0, τ2 ) with unknownτ2.
(f)[5 marks] Obtain the least square estimate of (α0, α1, α2 ).
(g)[5 marks] Obtain 95% confidence interval forα0, α1,andα2 .
(h)[5 marks] Give an estimate ofτ2
Need plagiarism-free Answers for your college/ university Assignments
Order Non-Plagiarised AssignmentStuck on your AMS2320 Business Regression Analysis? Don't worry! Our Business Analysis Assignment Help service is the best for you. If you need help with assignments, our expert PhD writers will provide you with original content. And yes, you will also get free assignment samples which will give you a perfect idea of how to write a top-quality assignment. Don't worry about the deadline, as we guarantee on-time delivery. Contact us now for high-quality and plagiarism-free work and boost your grades!
Let's Book Your Work with Our Expert and Get High-Quality Content