Andrew Zieffler

Academic. Data lover. Statistics enthusiast.


In 2017, my wife and I were fed up with the cost of cable television and were considering “cutting the cord”. In addition to cable, we also had Hulu, Netflix, and Amazon Prime, so our hypothesis was that we probably didn’t need cable. Before making the decision to cut cable, I wanted some data to help ensure that I would not be eliminating many of the TV shows that I watched.

What to do about p-values?

In March, the ASA published a special issue of The American Statistician (TAS) related to statistical inference in the 21st century. In the initial article, Moving to a World Beyond “p < 0.05”, Wassersein, Schirm, and Lazar (2019) write for the ASA saying, “The ASA Statement on P-Values and Statistical Significance stopped just short of recommending that declarations of “statistical significance” be abandoned. We take that step here. We conclude, based on our review of the articles in this special issue and the broader literature, that it is time to stop using the term “statistically significant” entirely.

2019 StatPREP Workshops

I just finished helping out with two StatPREP workshops in Columbia, Maryland and Fort Worth, Texas, respectively. StatPREP is an initiative of the Mathematical Association of America (MAA), in conjunction with American Mathematical Association of Two-Year Colleges (AMATYC) and the American Statistical Association (ASA), to introduce data and computing into introductory statistics courses—specifically in community college classrooms. Summer 2019 StatPREP participants and workshop leaders at Howard Community College Each summer, workshops are held in four locations, and each location hosts a workshop for two consecutive years.

Higher Education in Minnesota

I was recently perusing a book from 1960, Minnesota Heritage: A Panoramic Narrative of the Historical Development of the North Star State and came across the following map showing the locations of the colleges and universities in the state at the time. Figure 1: Minnesota Colleges and Universities in 1960 The text referring to the map made an inference about the accessibility to higher education, At a glance the map shows, these facilities for higher education are quite uneveny distributed.

Computing Talk at SSC 2018

I am giving a talk at the 46th Annual Meeting of the Statistical Society of Canada in Montreal on June 05, 2018. The talk is part of an invited session on Teaching Statistics to Graduate Students in the Health and Social Sciences. Information, including the slides, is available below. Title: Statistical Computing: Non-Ignorable Missingness in the Graduate-Level Social Science Curriculum Abstract: In 2010, Nolan and Temple Lang pointed out that "