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Tag Archives: sample-size
Great Statistical Resource: The Analysis Factor StatChat
Statistical consultant Karen Grace-Martin launched a new blog in July, 2008 called “StatChat” which makes a lot of relevant, important, but sometimes hard to grasp statistical concepts easy to understand. Categories of postings include linear regression, missing data, spss, sas, anova, factor analysis, and sample size — things that all market research deal with on a regular basis (whether they like it or not!). Continue reading
How big should your sample be?
Is it enough to survey 100 people or are you only going to get useful results if you survey 1,000 people? The answer, unfortunately, really depends on the questions you are asking, the likely results, and your preferred "margin of … Continue reading