User Account

All Pages

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

Frequency polygon, Differentiate between Historigrams and Histogram

Differentiate between Historigrams and Histogram

Empirical relation between mean mode and median, empirical relation between...

empirical relation between mean mode and median

Do you think the change towards ifrs is a good idea, Do you think the chang...

Do you think the change towards IFRS is a good idea? Manager 1: This change is definitely going to be a very positive change. There are no doubt a lot of advantages that IFRS

12 questions, normal distribution and the sampling distributions of sample ...

normal distribution and the sampling distributions of sample proportions and sample means, but without confidence interval

Standard error of the differnce between means., IN two separate studies, th...

IN two separate studies, the actual difference between the means of a treated group and untreated group is 3 points. However, in one study sm1-m2 is very large and so the 3 points

Merger and acquisition , GE matrix of a company

GE matrix of a company

Least squares analysis, Least squares method of fitting a line ( the line o...

Least squares method of fitting a line ( the line of best fit or the regression line) through the scatter diagram is a method which minimizes the sum of squared vertical deviations

Cash flow statement, how to draw cash flow statement

how to draw cash flow statement

Study of regression, usefulness of study of regression

usefulness of study of regression

What is the lm and is curve, Consider an economy specified by the following...

Consider an economy specified by the following:       Y = PE = C + I + G + NX                            (Income identity)       C = 400 + 0.9YD

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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