In this week’s Brief, we look at ways to determine optimal sample size. Our course spotlight is
- April 10 – May 8: Sample Size and Power Determination
See you in class!
Big Sample, Unreliable Result
The 1948 Kinsey report on male sexual behavior in the U.S. yielded estimates of homosexuality that were surprisingly high. The report was controversial among statisticians. Which noted statistician said he’d sooner believe data from a random sample of 3 than from a sample of 300 selected by Kinsey?
- Thomas Bayes
- Ronald Fischer
- John Tukey
- Jerzy Neyman
Word of the Week
Ridge Regression
Ridge regression is a method of penalizing coefficients in a regression model to force a more parsimonious model (one with fewer predictors) than would be produced by an ordinary least squares model. The term “ridge” […]
Course Spotlight
April 10 – May 8: Sample Size and Power Determination
In this course, taught by Kuber Deokar, Instructional Operations Supervisor at Statistics.com, you will learn how to
- Specify the factors that interact to determine sample size
- Estimate unknowns needed to calculate sample size
- Deal with paired data
- Find sample size for a regression analysis
- Use software to calculate sample size needed for tests of means, proportions
See you in class!
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