The Problem
Is hand size a good predictor of height? You are about
to collect your own data to find out if hand size and height
are correlated and if we can make a good prediction of
height using hand size. However, we first need to
decide how to measure hand
size.
Objectives
1. Learn the importance of proper measurement.
2. Learn the construction of scatter plots and correlations.
3. Learn the concept of relationships between two variables.
4. Learn the least squares method.
5. Learn the concept of model fitting and
prediction.
6. Learn how to interpret a regression model.
Key Concepts
Scatter plots, correlation, least square method, simple
linear regression, slope and residuals.
Other Related Topics
The data collected from this activity can
also be used for the following topics later on in the course:
• Inference of the regression
models
• Inference of correlation
• Residual analysis
Required Equipment
• Pass
code (provided by the instructor)
• Ruler to measure palm size
• Yard stick or tape measurer to
measure height
