What is the Correlation Coefficient?

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...

The Big Picture of Statistics

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...
How to State the Conclusion about a Hypothesis Test-old

How to State the Conclusion about a Hypothesis Test-old

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...
How to State the Conclusion of Your Hypothesis Test

How to State the Conclusion of Your Hypothesis Test

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...

The Traveling Graduate Problem

I have been teaching BUS430 for some time and I always seem to have a few students for whom a lightbulb goes on in their heads about how useful Excel can be in their business and personal lives. This term in the new 431 version of that course, the same types of...