Content by Jim Frost

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Jim Frost
P -values have been around for nearly a century, and they’ve been the subject of criticism since their origin. In recent years, the debate over p-values has risen to a fever pitch. In particular,...
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Jim Frost
In a previous article, I showed why there is no R-squared for nonlinear regression. Anyone who uses nonlinear regression will also notice that there are no P values for the predictor variables....
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Jim Frost
I didn’t expect that our family trip to Florida would end with me driving a plane load of passengers nearly 200 miles to their homes, but it did. Yes, it was a long and strange journey home. A...
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Jim Frost
Ihave written a number of blog posts about regression analysis, and I think it would be helpful to collect them in this post to create a regression tutorial. I’ll supplement my own posts with some...
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Jim Frost
In part one, I looked at how personal income levels fit into the global distribution of incomes. I’d be the last person to suggest that higher income guarantees more happiness. I’ve visited a...
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Jim Frost
In the United States, our Thanksgiving holiday is fast approaching. On this day, we give thanks for the good things in our lives. For this post, I wanted to quantify how thankful we should be....
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Jim Frost
Regression analysis generates an equation to describe the statistical relationship between one or more predictor variables and the response variable. After you use Minitab Statistical Software to...
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Jim Frost
In a previous post, I wrote about how the field of statistics is more important now than ever before due to the modern deluge of data. Because you’re reading this, I’ll assume that we’re in...
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Jim Frost
In statistics, we use a variety of intervals to characterize the results. The most well-known of these are confidence intervals. However, confidence intervals are not always appropriate. Here we’ll...
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Jim Frost
Recently, Patrick Runkel wrote about using regression models to explain how historians ranked the U.S. presidents. Given that I both love regression and have written about using regression to...