Chi square test for independence of attribute , Operation Research

Assignment Help:

Chi Square Test for Independence  of Attribute

The chi square  test  can be  used to find out  whether two  or more attributes are associated or not. This  test helps  in finding the association or  independence of two  or more  attributes. In  order  to test  the independence  of two  attributes  you should take  the null  hypothesis that the two attributes  are  independent. The second  step under  null  hypothesis is to  compute the expected frequencies for  each  cell of  contingency table. In  case of  contingency table  the expected frequency  for ( A1, B1) will be  calculated as:

E ( A1, B1)  = (A1) (B1) / N

After computing expected frequencies you can  calculate the value  of chi square . the   calculated  value  of chi square  will be then compared with  table value at certain level of significance ( usually at 5% for  ( r- 1) ( c-1) degree of freedom. If  the calculated value  is lower than table  value then you will  accept the  null hypothesis  that two  attributes are independent. In case  calculated  value is greater than  the table value  then the  null hypothesis will be  rejected and you will  conclude that two  attributes are associated.


Related Discussions:- Chi square test for independence of attribute

Tables and graphs, Normal 0 false false false EN-IN ...

Normal 0 false false false EN-IN X-NONE X-NONE

Considerations for oral reporting, Considerations for Oral Reporting S...

Considerations for Oral Reporting Sometimes  the researcher has been asked to  make an oral presentation of his  research findings he should  bear in mind a few major  conside

Identifying the solution to a problem, Software House named as Harvester, g...

Software House named as Harvester, got to increase the speed of service and I need to get 3000 words written

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

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

Linear programning, b. A paper mill produces two grades of paper viz., X an...

b. 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 pape

Report writing - report writing presentation, REPORT WRITING The final...

REPORT WRITING The final step in research is to report the study  findings to those  who authorized the investigation. The American marketing association is  of the opinion  t

Explain system control and security tools, 1. Explain the effects that MIS,...

1. Explain the effects that MIS, DSS, CRM and ERP have on organizational communication and decision making to increase productivity and efficiency in an increasingly competitive bu

Model, What are the features of blending model

What are the features of blending model

One, Edwards Life Sciences is trying to decide if it should sell a new type...

Edwards Life Sciences is trying to decide if it should sell a new type of medical product. Fixed costs associated to the production of the product are estimated to be $30,000. Th

Linear programming, 3. A paper mill produces two grades of paper viz., X an...

3. 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 pape

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