STATWORDS: INTRODUCTORY STATISTICS

Confidence Intervals for Proportions and Means

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

Topic Web page Video Other

Estimating population parameters

Inferential statistics
SurfStat Australia

Point and interval estimates
StatTrek

Confidence level
STEPS Project, U of Glasgow

Point and interval estimates
onlinestatbook.com

 

Confidence Interval for One Population Proportion

Confidence interval for a population proportion
StatTrek

Checking conditions for a confidence interval for a population proportion
brucesimmons.com

Excel: Calculating z* using NORMSINV
brucesimmons.com

Calculating a confidence interval for a population proportion
brucesimmons.com

Interpreting a confidence interval for a population proportion
brucesimmons.com

 

Confidence Interval for the Difference of Two Population Proportions

Confidence Interval for the Difference of Two Population Proportions
StatTrek

Checking conditions for a confidence interval for the difference of population proportions
brucesimmons.com

Calculating and interpreting a confidence interval for the difference of population proportions
brucesimmons.com

 

Estimating the Population Mean

The sample mean
Little Handbook of Statistical Practice

Biased vs unbiased estimators
onlinestatbook.com

Sample and population means
Khan Academy

Biased vs unbiased estimators (video)
onlinestatbook.com


Student's t Distribution

Degrees of freedom
onlinestatbook.com

The t distribution
onlinestatbook.com

Degrees of freedom (video)
onlinestatbook.com

The t distribution (video)
onlinestatbook.com

Interactive web page: Comparing the normal and t distributions
onlinestatbook.com

Confidence Interval for a Population Mean, Concept

Estimating a population mean
onlinestatbook.com

 

Simulation: Meaning of confidence level
onlinestatbook.com

Confidence Interval for a Population Mean, Calculations

Confidence interval for a population mean
StatTrek

Confidence interval for a population mean
onlinestatbook.com

Checking conditions for a confidence interval for a population mean
brucesimmons.com

Excel: Calculating and interpreting a confidence interval for a population mean
brucesimmons.com

 

Confidence Interval for the Mean of Paired Differences

Confidence interval for the mean of paired differences
StatTrek

Checking conditions for a confidence interval for the mean of paired differences
brucesimmons.com

Excel: Calculating a confidence interval for the mean of paired differences
brucesimmons.com

Interpreting a confidence interval for the mean of paired differences
brucesimmons.com

 

Confidence Interval for the Difference of Means

Confidence interval for the difference of means
StatTrek

Checking conditions for a confidence interval for the difference of means
brucesimmons.com

Excel: Calculating and interpreting a confidence interval for the difference of means, unpooled
brucesimmons.com

Excel: Calculating and interpreting a confidence interval for the difference of means, pooled
brucesimmons.com

 

Topic Web page Video Other