ISYE 6414 - UNIT 2 EXACTITUDE EXAM SOLUTIONS 2024 (100% PASS!)
Ace Your Exams with YANCHYSTUVIA!
Are exams, assignments, and projects stressing you out? Say goodbye to academic anxiety with Yanchy – your ultimate online study buddy!
Why Choose Yanchy?
Expert Test Prep: Get access to...
ISYE 6414 - UNIT 2 EXACTITUDE EXAM SOLUTIONS 2024 (100% PASS!)
What are the assumptions for multiple linear regression? - Precise Answer ✔✔Linearity/Mean zero assumption, Constant Variance, Independence and Normality (for statistical inference)
what are the model parameters to be estimated in MLR? - Precise Answer ✔✔B0 (intercept), B1-Bp, and sigma squared
In multiple linear regression, the model can be written in...? - Precise Answer ✔✔Matrix form.
design matrix - Precise Answer ✔✔a matrix consisting of columns of predicting variables including the column of ones corresponding to the intercept:
simple linear regression - Precise Answer ✔✔linear regression with one quantitative predicting variable
ANOVA - Precise Answer ✔✔linear regression with one or more qualitative predicting variables
Multiple linear regression - Precise Answer ✔✔multiple quantitative and qualitative predicting variables in MLR, the sampling distribution for sigma^2 is MSE ..... - Precise Answer ✔✔chi-
square with n-p-1 DF
marginal model (SLR) - Precise Answer ✔✔captures the association of one predicting variable to the response variable marginally, that means without consideration of other factors.
conditional model (MLR) - Precise Answer ✔✔captures the association of a predictor variable to the response variable, conditional of other predicting variables in the model.
We can make causality statements for... - Precise Answer ✔✔experimental designs
We can make associated statements for... - Precise Answer ✔✔observational studies
3 ways Predicting Variables can be distinguished as: - Precise Answer ✔✔Controlling, Explanatory, Predictive
Controlling factors - Precise Answer ✔✔to control for bias selection in the sample. They are used as 'default' variables in order to capture more meaningful relationships.
Explanatory factors - Precise Answer ✔✔to explain variability in the response variable; they may be included in the model even if other "similar" variables are in
the model
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller YANCHY. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
