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Chi-square Test

The first step when opening the nQuery program is to click File and then New.

A dialog box will appear that looks like this:

image 1

Since we intend to perform a chi-square test with two groups and three categories with unequal frequencies, we would check off Proportions, >Two Groups, Test, and the box at the bottom of the page for Unequal n’s. Upon doing this, 3 options will appear in the lower box. Choose the following:

  • G group Chi-square test comparing proportions in C categories   (See below)
  • Then, click OK

image 2