STATWORDS: INTRODUCTORY STATISTICS

Regression

The resources below were chosen to align with the Clackamas Community College statistics curriculum.

Topic Web page Video Other

Scatterplots and Patterns

Definition of scatterplot
StatTrek

Scatterplots and patterns
StatTrek

Explanatory and response variables
R. Backman

Scatterplots and patterns (video)
StatTrek

Cartoon: Relationship scatterplot
xkcd.com

Correlation Coefficient r and Coefficient of Determination r2

Correlation
StatTrek

Correlation coefficients and scatterplot examples
onlinestatbook.com

Correlation (video)
StatTrek

Correlation coefficients and scatterplot examples (video)
onlinestatbook.com

Excel: Correlation coefficient, coefficient of determination and interpetations
brucesimmons.com

Interactive web page: Matching r with scatterplots
onlinestatbook.com

 

Correlation Topics

 

Correlation and causation
Khan Academy

Cartoon: Correlation
xkcd.com

Regression Line
ŷ = b0 + b1x

Calculating b0 and b1 and also r2
StatTrek

Calculating b0 and b1
onlinestatbook.com

Excel: Finding b0 and b1
brucesimmons.com

Interactive web page: Guess the regression line
onlinestatbook.com

Residuals and Residual Plots

Definition of residual
StatTrek

Residual plots
StatTrek

Influential points and outliers in regression
StatTrek

 

Computing residuals
brucesimmons.com

Residual plots (video)
StatTrek

Excel residual plots
brucesimmons.com

Influential points and outliers in regression (video)
StatTrek

 

Sums of Squares and Standard Error s

Reading the output of a regression report
Little Handbook of Statistical Practice

Standard error s of the regression estimate
onlinestatbook.com

Calculating SSE and standard error s from a list of residuals
brucesimmons.com

Standard error s of the regression estimate (video)
onlinestatbook.com

 

Hypothesis Tests and Confidence Intervals

Confidence interval for a population slope
StatTrek

Hypothesis test for a population slope
StatTrek

Finding the test statistic and p-value in a regression report
brucesimmons.com

 

Topic Web page Video Other