Activities

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- Before the Activity Files
- Teacher Notes Appendix A PDF
- Teacher Notes PDF
- a1anova.83p
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Maths: Statistics: Inferential Statistics
Author

Texas Instruments
Level

9-12
Activity Time

60 Minutes
Device
- TI-83
- TI-83 Plus Family
Software

TI Connect™
Accessories

TI Connectivity Cable
Other Materials

This is Activity 10 from the EXPLORATIONS Book:
Statistics Handbook for the TI-83
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Analyzing Variance (ANOVA)

Activity Overview

Students analyze variances of various data samples.

Before the Activity

Download the A1ANOVA program using one of these two methods:

TI Connect™, a TI Connectivity Cable, and the Unit-to-Unit Link Cable

TI-Navigator™ "send to class" feature

See the attached PDF file for detailed instructions for this activity

Print pages 107 - 114 from the attached PDF file for your class

During the Activity

Distribute the pages to the class.

Follow the Activity procedures:

Completely Randomized Designs:

Record the distance of each hit made by a robotic golfer using three different brands of drivers

Store the data as lists

Enter the values for mean, standard deviation, and sample size

Run the ANOVA program

Determine the p-value

Evaluate the null hypothesis

Use the Bonferroni Multiple Comparison Procedure if the null hypothesis is rejected

Download the A1ANOVA program on the calculator

Input data using summary statistics or using a matrix

Observe that the results still show no difference between the means

Randomized Block Design:

Record data of distance traveled by three brands of balls, each hit three times by eight golfers

Store the data as lists

Enter the values for mean, standard deviation, and sample size

Run the A1ANOVA program

Determine the F-value and the p-value

Evaluate the null hypothesis

As the null hypothesis is rejected, use the Bonferroni procedure to determine which means differ

Two-Factor Designs With Equal Replicates:

Record the data obtained on testing three brands of two clubs using a robotic golfer in a completely randomized design

Run the A1ANOVA program

Store the data in a matrix

Determine the F-value and the p-value

Calculate the means and set up an xy-plot

After the Activity

Review student results:

As a class, discuss questions that appeared to be more challenging

Re-teach concepts as necessary

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Before the Activity Files

Alignment

Subject Area

Author

Level

Activity Time

Device

Software

Accessories

Other Materials