Sing test- hypothesis testing, Operation Research

Assignment Help:

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  a part of observation and  not on  their numerical  magnitude.

In any problem  in which sign  test is used we count:

Number of + sings

Number of  - sings

Number of 0 s  ( i, e, which  cannot be included either as positive or negative)

We take  H0  p= 0.5( Null hypothesis)

If the difference is due  to chance effects the   probability of a +sing for any particular pair is 1/2as is the probability of a  -sing. If s  is the number of times  the less  frequent sign  occurs then S has  the  binomial distribution with p= ½.

The  critical value for a two  sided alternative at α= 0.05 can be  conveniently found  by the  expression.

K = (n -1)/ 2 -( 0.98)√n

Ho is rejected if S ≤ K for  the sign  tests.

The sign  test can be  of two  types:

a.The one  sample  sign test

b.  The paired sample sign test

 


Related Discussions:- Sing test- hypothesis testing

Modeling process, What are the basic 5 elements of modeling process

What are the basic 5 elements of modeling process

#title.industry, scope of operation research in insutry and defence

scope of operation research in insutry and defence

Evolutionary methods, This methods studies development from simpler forms...

This methods studies development from simpler forms through a long series of a small change. Each change by itself results in minor modification in the phenomenon but the

Identify and comment on cultural similarities, You are required to analyse ...

You are required to analyse the case study, as indicated under these headings: 1. Identify FIVE persons, bodies, organisations or groups in the case study. 2. For EACH of the

LINEAR PROGRAMMING, SOLVE THE FOLLOWING LP USING SIMPLE METHOD MAXIMIZE Z=...

SOLVE THE FOLLOWING LP USING SIMPLE METHOD MAXIMIZE Z=3X1+2X2 SUBJECT TO CONSTRAINT X1+X2 X1-X2 X1,X2>=0

Uses of range - measure of dispersion, Uses of Range a.Range is suitab...

Uses of Range a.Range is suitable  measure  of dispersion  when the  data are too  scattered to justify the  computation of a more precise  measure of dispersion. b.In rece

Models, what is similation model as a type of mathematical models

what is similation model as a type of mathematical models

Classification of documents by physical characteristics, CLASSIFICATION OF ...

CLASSIFICATION OF DOCUMENTS  BY PHYSICAL CHARACTERISTICS : Documents of various types have been classified  on the basis of their physical characteristics, familiarity

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