Category Archives: Uncategorized

The Most Important Statistical Assumptions

Posted on July 5, 2020 by statswithcats
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The Kibble Buffet Experiment

Posted on May 12, 2020 by statswithcats

My three indoor cats are all seniors now, so I’m even more concerned that they have a healthy diet. I feed them both wet and dry food. They share most of two cans of wet food per day and have … Continue reading →

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What to Look for in Data – Part 2

Posted on January 27, 2019 by statswithcats

What to Look for in Data – Part 1 discusses how to explore data snapshots, population characteristics, and changes. Part 2 looks at how to explore patterns, trends, and anomalies. There are many different types of patterns, trends, and anomalies, … Continue reading →

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WHAT TO LOOK FOR IN DATA – PART 1

Posted on January 21, 2019 by statswithcats

Some activities are instinctive. A baby doesn’t need to be taught how to suckle. Most people can use an escalator, operate an elevator, and open a door instinctively. The same isn’t true of playing a guitar, driving a car, or … Continue reading →

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DARE TO COMPARE – PART 4

Posted on January 13, 2019 by statswithcats

Part 3 of Dare to Compare shows how one-population statistical tests are conducted. Part 4 extends these concepts to two-population tests. To review, this flowchart summarizes the the process of statistical testing. First, you PLAN the comparison by understanding the … Continue reading →

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DARE TO COMPARE – PART 3

Posted on December 1, 2018 by statswithcats

Parts 1 and 2 of Dare to Compare summarized fundamental topics about simple statistical comparisons. Part 3 shows how those concepts play a role in conducting statistical tests. The importance of these concept are highlighted in the following table. Test … Continue reading →

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You Need Statistics to Make Wine

Posted on October 5, 2018 by statswithcats

The American Statistical Association has identified 146 college majors that require statistics to complete a degree. You probably wouldn’t be surprised that statistics is required for degrees in mathematics, engineering, physics, astronomy, chemistry, meteorology, and even biology and geology. Most … Continue reading →

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Dare to Compare – Part 2

Posted on September 22, 2018 by statswithcats

Part 1 of Dare to Compare summarized several fundamental topics about statistical comparisons. Statistical comparisons, or statistical tests as they are usually called, involve populations, groups of individuals or items having some fundamental commonalities. The members of a population also … Continue reading →

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Dare to Compare – Part 1

Posted on September 4, 2018 by statswithcats

In school, you probably had to line up by height now and then. That wasn’t too difficult. There weren’t too many individuals being lined up and they were all in the same place at the same time. An individual’s place … Continue reading →

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Catalog of Models

Posted on November 5, 2017 by statswithcats

Whether you know it or not, you deal with models every day. Your weather forecast comes from a meteorological model, usually several. Mannequins are used to display how fashions may look on you. Blueprints are drawn models of objects or … Continue reading →

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