08+Correlation

=Monday, January 17, 2011=

Statistical Test: Correlation
· Scatterplots o Describing relationships o linear vs. nonlinear o negative vs. positive o no linear relationship · The correlation coefficient o properties o covariance o standardization (//z//-scores) · Test of significance o confidence interval o //t//-test · Interpretation

Readings
Correlation 1: [] Correlation 2: [] THE CORRELATION COEFFICIENT: [] YouTube - What Is Correlation: [] YouTube - Calculating Correlation: [] YouTube - Correlation & Covariance: [] YouTube - Hans Rosling's 200 Countries, 200 Years, 4 Minutes: [] YouTube - The Joy of Stats-humans feelings Statistics at Stanford University: [] Religion and Volunteering On Andrew Greeley's Website: [] Bars Versus Churches at Steven Landsburg The Big Questions Tackling the Problems of Philosophy with Ideas from Mathematics: [] Gapminder Unveiling the beauty of statistics for a fact based world view. - Gapminder.org: [] YouTube - Correlation vs. Causation: [] YouTube - Correlation Coefficient Example: [] Regression Applet ( 9-Sep-1996): [|http://www.stat.sc.edu/~west/javahtml/Regression.html] Spearman's rank correlation: []