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.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages

Completely randomized design, Basic Statistics

Related Discussions:- Completely randomized design

Sampling distribution, The heights of a large population of adult females w...

Index, where i found an assignment about index?

Standard price, Stock at hand 1000 unit at #0.80 each, received 2000 units ...

Identification of critical data elements, Check numbers for No Neighboring ...

Capital budgeting techniques, Capital budgeting Techniques Financial com...

Predetermined rates, #questKody Corporation uses a job-order costing system...

#mean, Uses of mean

Find a p-value from a t-test, A random sample of 321 New Jersey and 77 Penn...

material costing and control, summarize chapter 2 in three pages, material...

Estimate the probability, A football coach recorded in the practice session...

Write Your Message!

Featured Services

Online Tutoring

Project Development

Exam Preparation

Course Help

Assignment Help

Popular Subjects

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT