Caffeine and Calories: An example of a non-linear relationship

Not all of our class examples should reject the null. Sometimes, you just need some non-significant data, small effect size data that doesn't detect a linear relationship.

Such is the linear relationship between the number of calories and mg of caffeine in these 29 different treats provided by InformationIsBeautiful.

InformationIsBeautiful provides that data, as do I.