Completely randomized design, Basic Statistics

Assignment Help:
Ask question #MinimumAgency revenues. An economic consultant was retained by a large employment agency in a metropolitan area to develop a regression model for predicting monthly agency revenues ( y ). She decided that three economic indicators for the area were potentially useful as independent variables, namely, average weekly overtime hours of production workers in manufacturing ( 1 x ), number of job vacancies in manufacturing ( 2 x ), and index of help wanted advertising in newspapers ( 3 x ). Monthly observations on agency revenues and the three independent variables were obtained for the past 25 months. The ANOVA table for the model is as follows:

1479_Determine the subset of variables.png

The consultant decided to screen the independent variables to determine the best set for predicting agency revenues. The regression sums of squares for all possible regression models were found to be as follows:

1358_Determine the subset of variables1.png

(a) Determine the subset of variables that is selected as best by the forward selection procedure using F0* = 4.2 (to-add-variable). Show your steps.

(b) Determine the subset of variables that is selected as best by the backward elimination procedure using F0** = 4.1 (to-delete-variable). Show your steps.

NOTE: ( t0** ) 2 = F0**

(c) Determine the subset of variables that is selected as best by the stepwise regression procedure using F0* = 4.2 (to-add) and F0**
= 4.1 (to-delete). Show your steps.

Related Discussions:- Completely randomized design

Venn diagrams, how do i solve questions with venn diagrams

how do i solve questions with venn diagrams

Operational research, what is the defination of model in operational resea...

what is the defination of model in operational research?

Increasing the magnetic field inside a coil, Someone tries to increase the ...

Someone tries to increase the magnetic field inside a coil by adding more turns to the coil. Where should he add more turns: to the end of the coil (i.e., to make it longer) or to

Solve spss problem, SOLVE THE FOLLOWING PROBLEM IN SPSS. A college is cond...

SOLVE THE FOLLOWING PROBLEM IN SPSS. A college is conducting a study of its students' expectations of employment upon graduation. Students are sampled by class and major area of s

Resolance tube , #questionw..what is ment by resolance tube

#questionw..what is ment by resolance tube

Impact of government regulation on managerial decision, Impact of governme...

Impact of government regulation on managerial Decision making Impact of government regulation on managerial Decision making how methods of control can influence market prices.

Homophone disambiguation-unigram-bigram model , The BBC hosts a homophone q...

The BBC hosts a homophone quiz on its website; your task for this lab is to develop an automatic method for completing the quiz, with the aim being to get as high a score as possib

Homework, Can I get help with statistics?

Can I get help with statistics?

Dr. s.n.de, uses of time series with example

uses of time series with example

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd