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(5 pts) Explain under which circumstances we use the chi-squared statistic. What

ID: 3248942 • Letter: #

Question

(5 pts) Explain under which circumstances we use the chi-squared statistic. What kind of data is required to use the chi-squared (hint: it’s different than the type of data we’ve been working with thus far). Why is the chi-squared considered a nonparametric statistic (hint: what kind of scale is used in chi-square problems)?

(5 pts) Explain under which circumstances we use the chi-squared statistic. What kind of data is required to use the chi-squared (hint: it’s different than the type of data we’ve been working with thus far). Why is the chi-squared considered a nonparametric statistic (hint: what kind of scale is used in chi-square problems)?

Explanation / Answer

Usually chi square distribution is suitable for categorical data like Gender, religion, yes/no, and etc

the main application of chi square distributio is to test the homogenity of two categorical events.

So it is based onl only qualitative data, hence it is non parametric or other than quantitative test.

Here suitable scale is 'Ordinal'