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Chi-square test is very useful in research.
The following conditions should be satisfied before chi-square test can be applied;
·         The data must be in the form of frequencies (responses in two or more categories)
·         The frequencies data must have a precise numerical value and must be organized into categories or groups.
·         Observations recorded must be and used collected on a random basis.
·         There is no knowledge about population or parameters.
·         All the items in the sample must be independent. (Not controlled by any outside)
·         Group should be contain greater than 10 factors.
·         Groups/numbers of items must be reasonably large.it should normally be at least 30.  

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