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Tag Archives: statistics
Searching for Answers
Need to find something out, just Google it. Now that Google is a verb as well as a noun, it’s easy. But … It Hasn’t Always Been Easy Adults under 30, Millennials, grew up with smartphones, laptop and tablet computers, … Continue reading
Posted in Uncategorized
Tagged cats, Google, information, keywords, library, math, number of samples, numbercrunching, search, statistical analysis, statistics, stats with cats, views, word cloud, wordpress.com
3 Comments
Regression Fantasies
Common Reasons for Doubting a Regression Model Finding a model that fits a set of data is one of the most common goals in data analysis. Least squares regression is the most commonly used tool for achieving this goal. It’s … Continue reading
Posted in Uncategorized
Tagged accuracy, autocorrelation, correlation coefficient, dependent variable, heteroscedasticity, intercept, misspecification, model, multicollinearity, Non-linear relationships, number of samples, outliers, overfitting, precision, regression, sample size, samples, software, standardization, statistical analysis, statistical tests, statistics, stats with cats, stepwise regression, trend, variability, variance
13 Comments
How to Write Data Analysis Reports in Six Easy Lessons
In every data analysis, putting the analysis and the results into a comprehensible report is the final, and for some, the biggest hurdle. The goal of a technical report is to communicate information. However, the technical information is difficult to … Continue reading
Posted in Uncategorized
Tagged audience, cats, client, data analysis, jargon, objectives, reports, statistical analysis, statistics, stats with cats, technical writing
5 Comments
Ten Ways Statistical Models Can Break Your Heart
Models are beautiful. The ways their features are combined sets them apart from each other. Each has its own personality, sometimes pleasant, sometimes not, and often not what you would expect. Here are ten ways your love affair with statistical … Continue reading
Posted in Uncategorized
Tagged cats, correlation, model, models, regression, relationships, statistical analysis, statistics, stats with cats, variables
3 Comments
Looking for Insight through a Window
At a press briefing on February 12, 2002, then Secretary of Defense Donald Rumsfeld addressed the absence of evidence linking the government of Iraq with weapons of mass destruction: There are known knowns. There are things we know that we … Continue reading
Share Your Career with Students
I got a special request from my daughter in Hawaii that I hope you will read. Aloha. I teach 5th grade special education in a resource room setting. My students are currently researching careers they are interested in as part … Continue reading
How to Tell if Correlation Implies Causation
You’ve probably heard the admonition: Correlation Does Not Imply Causation. Everyone agrees that correlation is not the same as causation. However, those two words — correlation and causation — have generated quite a bit of discussion. Why Causality Matters No … Continue reading
Why You Don’t Always Get the Correlation You Expect
If you’ve ever taken a statistics class on correlation, you’ve probably come to expect that a large value for a correlation coefficient, either positive or negative, means that there is a noteworthy relationship between two phenomena. This is not always … Continue reading
Posted in Uncategorized
Tagged cats, causation, correlation, correlation coefficient, relationships, spurious correlations, statistics, stats with cats, variables, variance
8 Comments
How to Write Data Analysis Reports. Lesson 5—Get It Done.
Perhaps the hardest part of writing a data analysis report is just getting it completed. It takes discipline and persistence to stay on track. Even so, it’s easy to get distracted. Sometimes the problem is that the story of the … Continue reading
Posted in Uncategorized
Tagged cats, client, jargon, report writing, reports, statistical analysis, statistics, stats with cats, writer's block, writing
2 Comments
Stats With Cats Blog 
How to Write Data Analysis Reports. Lesson 6—Get Acceptance.
Data analysis reports have to go through one more hurdle after they are completely written. They have to be approved for acceptance by a gatekeeper. The approval for acceptance may involve allowing report distribution, starting the publishing process, issuing payment … Continue reading →