Our Presentations and Publications for You


Tollefson, M. 2017. Another look at hypotheses testing. International Researchers. 7 3, 3-5.

Tollefson, M. 2015, Conservative confidence intervals for the hypergeometric distribution using R. International Researchers. 4 3, 3-16.

Tollefson, M. 2014. R Quick Syntax Reference. Apress. New York

Tollefson, M. 2007. Art & science: finding their complementary tools in a chart. Dell Horoscope. 73 3, 67-68, 102.

Tollefson, M. 2005. Some statistical tests on facial expressions. ISAR International Astrologer: Exploring Research and Astrology, Volume Two - Research Studies. 33 3, 63-67.

Tollefson, M. 1995. The Boulder "A" index isn't the way: a Ph.D. in statistics looks at our Boulder "A" index study. Low Band Monitor. 3, #1.

Tollefson, M. 1995. A future for statistics in astrology. Today's Astrologer. 57, 158-160.

Tollefson, M. 1995. Testing for seventh house rulership using the Gauquelin heredity data set. The Schneider-Gauquelin Research Journal: Astro-Psychological Problems. 11, 18-19.

Tollefson, M. and Fuller, W. A. 1992. Variance estimation for samples with random imputation. Proceedings of the Section on Survey Research Methods. 15th ed. American Statistical Association. Alexandria, VA, 758-763.

Sankoorikal, J. T., Danofsky, R. A., David, H. T., Hendrickson, R. A., and Tollefson, M. 1985. Statistical estimation of vibration parameters of nuclear reactor core components. Transactions of the American Nuclear Society, 49, 428-429.

McCarthy, J. F., Mohiuddin, G., Tollefson, M. H., and Elliot, J. F. 1984. Detection of sulfuric acid aerosols by a mobility classifier system. Proceedings - Air Pollution Control Association Annual Meetings, 6, 84-110.4.


2010. The mechanics of climate change: some comments on a sidebar article in Amstat News. (Vanward Statistics website)

2009. Numerology and presidential birth dates. (Vanward Statistics website)

2006. Study of the occurrence of venus conjunct the south node in my family. (Sent to siblings and cousins.)

2006. Analysis of an attendance survey taken by Recovery, Inc., in the fall of 2005. (Given to Recovery, Inc., now Recovery International.)

2004. Study of the astrological placements of poets, using AstroDataBank. (Given to the International Society for Astrological Research as part of an application for the position of research director.)


A talk on the normal and chi square distributions and the use of the distributions in the AIR software program, Fast Research. Online, for the AstroInvestigators research group, 2009

A talk on the decennial census, given to grade schoolers. Stratford Community School, Stratford, Iowa, 2009

A talk on working with nonresponse in surveys. Iowa Staters seminar, Iowa State University Statistics Department, Ames, 1993(?)

"Variance Estimation for Samples with Random Imputation." American Statistical Association's Joint Meetings, Boston, 1992

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