Question

What is the purpose of a chi-square test?

	a.	To measure the degree of association between categorical variables.
	b.	To distinguish the degree of separation between categorical variables.
	c.	To evaluate the degree of differentiation between continuous variables.
	d.	To quantify the degree of differentiation between categorical variables.

Answer 1

Chi squared test is used to test for independence between two categorical variables.

That means this test indicates whether two categorical variable are associated or independent.

For an example we want to test whether cigarette smoking depends on gender.

We take the random sample of males and females who smoke and does not smoke as well.

And using chi square test we can determine their independence.

So,

the purpose of a chi-square test?

a.

To measure the degree of association between categorical variables.

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