STATISTICAL TECHNIQUES AND TOOLS
CHI SQUARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Chi-square Goodness of Fit Test
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Chi-Square Test for Homogeneity
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Chi-Square Test for Independence/Association
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Not a Chi-square test
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Detailed explanation-1: -The chi-square test is used to determine whether there is a statistical difference between two categorical variables (e.g., gender and preferred car colour). On the other hand, the F test is used when you want to know whether there is a statistical difference between two continuous variables (e.g., height and weight).
Detailed explanation-2: -Both chi-square tests and t tests can test for differences between two groups. However, a t test is used when you have a dependent quantitative variable and an independent categorical variable (with two groups). A chi-square test of independence is used when you have two categorical variables.
Detailed explanation-3: -The chi-square test is used exclusively for data put into classes (bins), and it requires a sufficient sample size in order to produce accurate results. Goodness-of-fit tests are commonly used to test for the normality of residuals or to determine whether two samples are gathered from identical distributions.