In a study, data collected for 40 observations were used to model the dependent variable y with 8 independent variables under consideration, x1, X2, ... , Xg. Consider a stepwise regression run on the data. 1. What is the form of the model fit in sten 1? How many modelc aro fit? Hou in the "

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 4SGR
icon
Related questions
icon
Concept explainers
Question
In a study, data collected for 40 observations were used to model the dependent variable y with 8
independent variables under consideration, x1, X2,
... , xg. Consider a stepwise regression run on the data.
1. What is the form of the model fit in step 1? How many models are fit? How is the "best" independent
variable selected in this step?
2. What is the form of the model fit in step 2? How many models are fit? How is the "best" independent
variable selected in this step?
3. What is the form of the model fit in step 3? How many mądels are fit? How is the "best" independent
variable selected in this step?
4. The variables x3, x4, and x6 were deemed the best variables for predicting y. How do you recommend the
researchers proceed from here? Why?
Transcribed Image Text:In a study, data collected for 40 observations were used to model the dependent variable y with 8 independent variables under consideration, x1, X2, ... , xg. Consider a stepwise regression run on the data. 1. What is the form of the model fit in step 1? How many models are fit? How is the "best" independent variable selected in this step? 2. What is the form of the model fit in step 2? How many models are fit? How is the "best" independent variable selected in this step? 3. What is the form of the model fit in step 3? How many mądels are fit? How is the "best" independent variable selected in this step? 4. The variables x3, x4, and x6 were deemed the best variables for predicting y. How do you recommend the researchers proceed from here? Why?
Expert Solution
steps

Step by step

Solved in 5 steps

Blurred answer
Knowledge Booster
Correlation, Regression, and Association
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax