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Just a note

Using the textbook formula:
the instructions below calculate 95% confidence limits for the untransformed mean difference, then the mean transformed difference.

> md # mean difference [1] 20323.33 > md+t*se # lower 95% confidence limit of mean [1] 14058.81 > md-t*se # upper 95% confidence limit of mean [1] 26587.86 > min(d) < 0 # Are any differences -ve? [1] FALSE > md^2 # detransformed mean difference [1] 19978.12 > CL^2 # lower confidence limit [1] 14396.32 > CU^2 # upper confidence limit [1] 26472.37