Statistics: Tootsie Pops & Hand Span

Objectives

Students will:

• decide on data collection methodology and collect data.
• plot data on a scatter plot.
• find and interpret the correlation coefficient, coefficient of determination, and the equation of the least-squares regression line.
• add the least-squares regression line to their scatter plot and make a residual plot.
• identify outliers and influential points.
• use their model to make predictions.
• discuss sources of error in the data collection, and discuss causation.