Add Sprintf to all mean and sd values in plots to force 2 digits even where there is only one or none. 25 -> 25.00, 25.1 -> 25.10
Change cex of addtable2plot to fit plot
Change cex of addtable2plot to fit plot
Add barplots to Z and t H1
sqrt(n) -> sqrt(n) in smaple distribution variance
Add forceh0 to Z and t models