Daily Bookmarks 07/09/2007

Sample Size Calculator by Raosoft, Inc.

• Nice calculator with multiple variables to determine the sample nice needed for your choice of margin of error and confidence level. Automatically creates alternate scenarios where the sample size or confidence level is different so you can compare.
   – post by christyinsdesign

Margin of Error Calculator

• Enter the population and sample size to get a Margin of Error with 95% confidence.
   – post by christyinsdesign

Margin of Error and Confidence Levels Made Simple

• Quick overview of margin of error and confidence levels. Includes a table of sample size and MOE percent.
   – post by christyinsdesign