Education Technology

# Activities

• ##### Subject Area

• Math: Statistics: Inferential Statistics

9-12

60 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition

TI Connect™

• ##### Accessories

TI Connectivity Cable

## TI Using the Chi-Squared Significance Test

#### 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.