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

Assigment , b. A paper mill produces two grades of paper viz., X and Y. Bec...

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

Solved the question, #questionthe following Linear Programming Problem usin...

#questionthe following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0 ..

#title. solution, Solve the following Linear Programming Problem using Simp...

Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2

CONCEPT OF DUALITY IN LPP, EXPLAIN THE CONCEPT OF DUALITY IN LPP THROUGH A ...

EXPLAIN THE CONCEPT OF DUALITY IN LPP THROUGH A LIFE SITUATION

Non-documentary sources and institutional resources, Non-Documentary Source...

Non-Documentary Sources: On the other hand, non-documentary sources are institutional and human resources, both of which are important links in the information-transfer chain.

Linear programming, Ask question #Minimum 100 words acceptNas food produces...

Ask question #Minimum 100 words acceptNas food produces to kinds of popular dark chocolate bars. the banana and coffee. the banana bar costs 0.22 to make and sells of 0.35, where a

Ans, A paper mill produces two grades of paper viz., X and Y. Because of ra...

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 i

What is the temperature of water leaving the chillier, A water chillier wit...

A water chillier with a capacity of 30 TR cools 20 m 3 /hr. water entering at 12 o C what is the temp. of water leaving the chillier. A reversible engine has an ideal thermal ef

Histogram and historigram, #qudistinguish between histogram and historigram...

#qudistinguish between histogram and historigram estion..

Linear programming problem, Solve the following Linear Programming Problem ...

Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0

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