Non parametric tests - hypothesis testing, Operation Research

Assignment Help:

NON PARAMETRIC TESTS

All  practical  data follow normal distribution under  such situations can estimate the  parameters such  as mean  variance etc ,,, and use the  standard  test they are  known as parametric test. The practical data may be non normal and or it may not be possible to estimate the  parameter of the data. The tests  which  are sued for such  situations are called  nonparametric tests. Since  these  tests  are  based  on the  data which  are free  distribution and parameter these  tests are known as nonparametric  tests.

The  nonparametric  tests require less calculation because there is no need to compute  parameters. Also  these  test can  be applied to very  small samples more specifically during pilot   studies in market research.

The  test techniques  makes  use of  or more values obtained from  sample data often called test statistic to arrive at a probability statement about  the hypothesis. But  no such  assumptions are  made in  case of  nonparametric  tests. In a statistical test two kinds of  assertions  are involved viz... an  assertion directly  related to the  purpose of investigation and  other assertions to make  a probability  statement. The  former  is an  assertion to be tested  and is technically called a hypothesis whereas the set  of al other assertions  is  called the model. When we apply a test to ( to test the hypothesis ) without  a model it is known as  distribution free test or the non parametric test. Non  parametric tests do not make an assumption  about  the parameters of the population  and thus do not make an assumption distribution. In other  words under nonparametric or distribution free tests  we do not  assume that a  particular distribution is applicable  or that a certain value is attached to a parameter of the  population.


Related Discussions:- Non parametric tests - hypothesis testing

Sing test- hypothesis testing, SING TEST The sign test  is the simples...

SING TEST The sign test  is the simplest  of the  parametric  tests. Its name comes  from the  fact  that it is based  on the direction ( or sings  for  pluses or minuses ) of

Simplex method, how to solve simplex method in LPP?

how to solve simplex method in LPP?

Compute the joining, The Best Corporation is considering making either mino...

The Best Corporation is considering making either minor or major repairs to a malfunctioning production process.  When the process is malfunctioning, the percentage of defective it

Linear programming, solve the following linear programming problem using si...

solve the following linear programming problem using simplex method maximize z=3x1+2x2 subject to the constraints: x1+x2 x1+x2 x1,x2>=0

Complexity - necessity of operations research, In a big industry the numbe...

In a big industry the numbers of factors influencing a decision have increased situation has become big and complex because these factors interact with each other in complica

T, #Principles of OR

#Principles of OR

Banking operations, sir plz suggest me any book for this...or notes.....

sir plz suggest me any book for this...or notes.....

Mathematical, Ask 7:23 PM Docx Reader GROUP-7 1. A firm manufactures two pr...

Ask 7:23 PM Docx Reader GROUP-7 1. A firm manufactures two products A & B on which the profits earned per unit is Rs.3 and Rs.4. Each product is processed on two machines Miand M2.

Methodology of operation research, The systematic methodology developed f...

The systematic methodology developed for an operation research study with problems involving conflicting multiple objective policies and alternatives. Operation research in

Techniques of observation method, Techniques of Observation Method Obs...

Techniques of Observation Method Observation always involves some interaction between respondent and researcher in which researcher has an opportunity to watch respondent fu

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