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

Statistics Project, I will submit a file that explains what is supposed to ...

I will submit a file that explains what is supposed to be done in order to complete the project. And, another file will be submitted that has the blanks in it. I need the work to b

Explain the term “trial balance” and its needs, Explain the term “Trial Bal...

Explain the term “Trial Balance” and its needs for an organization. Ans. A Trial Balance is a statement of summarization of the all the involved ledgers accounts at the end of th

Find the invariant probability, Problem 1 . Let X 0 ;X 1 ;X 2 . . . be a Ma...

Problem 1 . Let X 0 ;X 1 ;X 2 . . . be a Markov chain with state space f1; 2g and transition probabilities given as follows: p 11 = 0:3; p 12 = 0:7; p 21 = 0:5; p 22 = 0:5:

Truss, state the condition followed by dimple truss.

state the condition followed by dimple truss.

Calculate the probability of dealt, Please show work as we need to understa...

Please show work as we need to understand how to calculate the following 4 questions: 1.  You play a card game where 2s are considered wild.  You are dealt 7 cards - what is the

Characteristics of statistics, Mention the characteristics of statistics. E...

Mention the characteristics of statistics. Explain any two application of Statistics

Schedules, what are the characteristics of schedules

what are the characteristics of schedules

Discrete random varible, A probability distribution is partially given in t...

A probability distribution is partially given in the following table with the additional information that the even values of X are equally likely. Determine the missing entries in

Cash disbursements, Cash disbursements Cash disbursements are any or more ...

Cash disbursements Cash disbursements are any or more moneys [egg, checks: money: warrants: credit, debit card amounts: & EFTs [Electronic Fund Transfers) paid by the state during

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