Assumption of f- test- hypothesis testing, Operation Research

Assumption of F- Test

The  theoretical assumption on which  F test  is based are:

1.The populations for  each sample must  be normally  distributed  with  identical  mean  and variance.

2.All sample observation must be  randomly selected and independent.

3. The ration of  αa2 to α22 should  be equal to or greater than. This is the  reason that  larger variance is divided by the  smaller  variance.

4. Since  the F distribution  is always formed by a ratio of squared values it  can never be a negative number. All F distribution  are unmoral and are  skewed to the right. They tend to  become  more  nearly symmetrical as V1 and v2 increase.

5.The total  variance  of the  various sources of  variance  should be additive.

Total sum of squares = sum of squares between  the groups  + sum of  squares within  the groups.

Posted Date: 2/26/2013 11:16:38 PM | Location : United States







Related Discussions:- Assumption of f- test- hypothesis testing, Assignment Help, Ask Question on Assumption of f- test- hypothesis testing, Get Answer, Expert's Help, Assumption of f- test- hypothesis testing Discussions

Write discussion on Assumption of f- test- hypothesis testing
Your posts are moderated
Related Questions
Graphic Methods a. Scatter Diagram: Scatter  diagram  is a special  type of dot chart.  Under  this methods  the given data are  plotted in  a graph  paper  in the form of  d

Question 1 What do you understand by customs duty? Explain the taxable events for imported, warehoused and exported goods. List down the types of duties in customs. An importer

A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i

The scientific methods is thus based on certain basic postulate which can be stated as under: a. It relies on empirical evidence: b. It utilizes relevant concepts;

a paper mill produce two grades of paper viz., X and Y. because of raw material restrictions, it cannot produce more than 400 tona of grade X and 300 tons of grade Yin a week. ther

1. What is the major problem or issue being investigated? The interaction between service failure and online shop's readiness for service recovery and the resulting impact on custo


Assumption of F- Test The  theoretical assumption on which  F test  is based are: 1.The populations for  each sample must  be normally  distributed  with  identical  mean

factors affecting tha transportation cost

A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i