Back to Questions
Want to know:
If the linear regression model includes an intercept, the number of dummy variables representing a categorical variable should be one less than the number of categories of the variable. This solution helps avoid which problem?-Categorical variables-This is not an issue-Dummy variable trap-Category sum trap
Get a detailed, AI-powered explanation for this question and thousands more on StudyFetch.
Get the Answer for FreeHow StudyFetch Helps You Master This Topic
AI-Powered Answers
Get instant, detailed explanations powered by AI that understands your course material.
Deep Understanding
Go beyond surface-level answers with step-by-step breakdowns and examples.
Personalized Learning
Sparky adapts to your learning style and helps you connect ideas.
Practice & Test
Turn any question into flashcards, quizzes, and practice tests to solidify your knowledge.
Explore More Questions
- The exponential trend model is attractive when the expected increase in the series gets '__________________" over time.
- AR(3) Process: Partial autocorrelation for lag 5 is always greater than zero
- Ava Diego, a doctoral student, is researching car loans issued at a local bank. She prepared asample of 200 to determine if there is a relationship between the loan amount, length of theloan, and interest rate provided. The regression results are in the table below. Which model ismore suitable for prediction and what is the best fit reason?Variable Model 1 p-value Model 2 p-valueConstant 114.325 0.000 110.54 0.000InterestRate106.505 (0.000) 108.650 (0.000)LoanLength0.2074 (0.000) 0.3290 (0.006)Interest× LoanNA −0.1430 (0.0005)AdjustedR 20.2178 0.2089