by Dawn Wright | May 28, 2019

This is the Excel solution using slightly different values:
by Dawn Wright | Mar 14, 2019

This is an excerpt from a longer, 12-minute video by Unbreaking America. I used it as an example of regression on a current event. I wonder how many Americans are data savvy enough to understand what Lawrence is showing them. I asked my students to identify the...
by Dawn Wright | Jan 31, 2019

The Big Picture of Statistics The process of statistics starts when we identify what group we want to study or learn something about. We call this group the population. Note that the word “population” here (and in the entire course) is not just used to refer to...
by Dawn Wright | Nov 21, 2018

Homepage About Excel Calculators BUS 233/503 Video Matrix The Easier Way After you have completed the statistical analysis and decided to reject or fail to reject the Null hypothesis, you need to state your conclusion about the claim. To get the correct wording, you...
by Dawn Wright | Nov 21, 2018

The Easier Way After you have completed the statistical analysis and decided to reject or fail to reject the Null hypothesis, you need to state your conclusion about the claim. 1. To get the correct wording, you need to recall which hypothesis was the claim. If...