100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
ISYE 6414 FINAL EXAM / ISYE6414 FINAL EXAM REAL EXAM QUESTION AND ANSWERS £17.49   Add to cart
Quickly navigate to
Preview
  2.  
  3. ISYE 6414 FINAL EXAM 2022-2023 / ISYE6414 FINAL E
  4.  
  5. ISYE 6414 FINAL EXAM 2022-2023 / ISYE6414 FINAL E
  6.  
  7. ISYE 6414 FINAL EXAM 2022-2023 / ISYE6414 FINAL E

Exam (elaborations)

ISYE 6414 FINAL EXAM / ISYE6414 FINAL EXAM REAL EXAM QUESTION AND ANSWERS
 8 views  0 purchase

ISYE 6414 FINAL EXAM / ISYE6414 FINAL EXAM REAL EXAM QUESTION AND ANSWERS ISYE 6414 FINAL EXAM / ISYE6414 FINAL EXAM REAL EXAM QUESTION AND ANSWERS ISYE 6414 FINAL EXAM / ISYE6414 FINAL EXAM REAL EXAM QUESTION AND ANSWERS

Preview 2 out of 11  pages

Document information

  • December 10, 2023
  • 11
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

All documents for this subject (1)

Seller

avatar-seller
Profsmith

Reviews received

Content preview

ISYE 6414 FINAL EXAM 2022-2023 / ISYE6414 FINAL
EXAM REAL EXAM QUESTION AND ANSWERS


1. We should always use mean squared error to determine the best value
of lambda in lasso regression.
a. True
b. False

Sol: False. The criterion used is a choice we make.
2. Standard linear regression is an example of a generalized linear model
where the response is normally distributed and the link is the identity
function.
a. True
b. False

Sol: True. See Unit 4.4.1.
3. Goodness-of-fit assessment for logistic regression involves checking
for the independence, constant variance, and normality of the deviance
residuals.
a. True
b. False

Sol: False. We don’t have constant variance in binomial regression.
4. You are interested in understanding the relationship between stress level and
exercise, with stress as the response. In your model, the number of hours a
person spends exercising per week would be considered an explanatory
variable while the person’s age would be a controlling variable.
a. True
b. False

Sol: True. Time spent exercising is part of the relationship you are trying to
understand while age could act as a confounding variable that you need to
control.
5. The hypothesis test for goodness-of-fit using Pearson residuals and the
test using deviance residuals will always reach the same conclusion.
a. True
b. False

Sol: False. One test may conclude plausibly good fit while the other rejects it.

, 6. A logistic regression model with high goodness of fit can have low predictive
power.
a. True
b. False

Sol: True. See Unit 4.2.3.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

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 Profsmith. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £17.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79223 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£17.49
  • (0)
  Add to cart