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

M/M/s queue, How do I use C# to program an M/M/s queue model?

How do I use C# to program an M/M/s queue model?

Steps of field study, Festinger and Katz have described followings six ste...

Festinger and Katz have described followings six steps in the conduct to a field study. a. Preliminary Planning :Deciding scope and objectives of study and the time table

Annotated bibliography - report writing presentation , Annotated bibliograp...

Annotated bibliography   In  this  bibliography each  is followed  by a one sentence or  one  paragraph  description of the content  of the work  cited. For  example Bndypad

Decision tree approach, Question: Spencerville Products is expanding ...

Question: Spencerville Products is expanding its operations west of the Mississippi.  Its first step is to build a manufacturing facility in Denver to satisfy demand on the W

Transportation and linear programming., #what is the similarity and differe...

#what is the similarity and difference between transportation and linear programing models?

Critical evaluation of research, 1. What is the major problem or issue bein...

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

Determine capacity of unit, Show simple vapour compression Refrigeration cy...

Show simple vapour compression Refrigeration cycle with showing all the devices and also draw T-sand P-R diagram and illustrate it also. A Bell-Coleman cycle works between 1 bar

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