Education Technology

TI Using the Chi-Squared Significance Test

Published on 06/09/2008

Activity Overview

Students will apply the chi-squared test for independence to a data set of high school AP Statistics Exam scores. They will set up a two-way table and calculate the chi-squared test statistic by hand.

Before the Activity

See the attached Activity PDF file(s) for detailed instructions for this activity.

During the Activity

Follow the procedures outlined in the activity.

Students will:

  • Use matrices on their TI-83 Plus/TI-84 Plus calculator to compute the chi-squared statistic and p-values for the given data set.
  • Understand how sample statistics reflect the values of population parameters and use sampling distributions as the basis for informal inference.
  • The students will understand the differences among various kinds of studies and which types of inferences can legitimately be drawn from each.
  • After the Activity

  • Review student answers
  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary