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

Advantages of operations research, Operation Research may be regarded as a...

Operation Research may be regarded as a tool which is utilized to increase the effectiveness of the management decisions. O R is objective supplement to the subjective feeling

Testing operation research model, After testing the model and its solutio...

After testing the model and its solution the next step of the study is to establish control over the solution by proper feedback of the information on variables which deviated

Case study and statistical methods, Case Study Methods: It is studying the...

Case Study Methods: It is studying the phenomenon event situation or development through a thorough and detailed analysis or intensive study. The case may be an individual a gr

Operations research 2, management wants to know how many supervisors should...

management wants to know how many supervisors should be hired, and what could be the optimum workload distribution to be applied, given a number of constraints

Modi, history of modi

history of modi

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

Inherent forces fomenting conflicts of interest, Inherent forces fomenting ...

Inherent forces fomenting conflicts of interest Several forces have coalesced to increase the incidence of conflicts of interest in the medical industry: the vertical integrat

Linear programming, . A paper mill produces two grades of paper viz., X and...

. 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

Answer, explain operation research with example.and also discuss the scope ...

explain operation research with example.and also discuss the scope of OR in modern management.

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