Summary table of alternative difference-of-means tests

The difference of means tests are widely used in applied research. Since this chapter has covered a large number of tests, it’s useful to display the different tests used, their underlying assumptions, and the corresponding R code together in one place. The table below does just that.

Note that the R code in the table below is in a generic form. To make sense of it, we should cross-reference the generic R code against the four specific scenarios concerning the average economic growth rate difference between 1960 and 1990. For the sake of convenience, the corresponding R code is repeated as follows:

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