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

Bond Relationship, Bond Relationship A debt gadget issued through a offici...

Bond Relationship A debt gadget issued through a official or just the formal legal procedure and secured either by the pledge of detailed properties or revenues or by the general

Define Manufacturing Overhead Costs, In the financial statements, each prod...

In the financial statements, each product must include the costs of the given below: Direct labor Direct material Manufacturing or factory overhead The costs that would typically b

What is meant by the full cost of a product, What is meant by the full cost...

What is meant by the full cost of a product? Many organizations use the expression top dollars to mean the complete creating or technology cost of a product. To this organiz

What is hurdle rate, What is hurdle rate? In investment spending budget...

What is hurdle rate? In investment spending budget, challenge amount is the minimal amount that an organization desires to earn when getting a venture. Hence the challenge amou

Calculate the probability of monthly return income, 1. It is often a good i...

1. It is often a good idea to start by visualizing the data. Time series data should have "time" on the horizontal axis. What are you going to have on the vertical axis? If you use

Acct 1100, comprehensive problem 1 chapter4

comprehensive problem 1 chapter4

Nominal data, what type of analysis is suitable for nominal data?

what type of analysis is suitable for nominal data?

National demand, The national demand and price for a certain type of energy...

The national demand and price for a certain type of energy-efficient exhaust fan are related by p=441-3/7q, where p is the price and q the demand. The price and supply of the exhau

Accounting problem, a business was started on January 1, 2011 and $1000 of ...

a business was started on January 1, 2011 and $1000 of supplies to use in the business. At the end of the month 25% of the supplies remains unpaid and 20% are still on hand. what a

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