t-test

Dear Group,

I want to do a t-test calculation on a large data set.

I am pasting some part of it

structure(list(Name = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 3L,
3L, 3L, 3L, 3L, 3L, 3L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
2L), .Label = c("CTK100", "CTK103", "CTK121"), class = "factor"),
     Score = c(236.9726, 207.0055, 237.3464, 224.4774, 236.5034,
     206.7382, 233.94, 240.31, 240.9, 235.15, 223.36, 248.67,
     249.25, 201.4051, 244.1689, 182.2756, 229.001, 241.3211,
     196.0453, 232.6055, 225.0783, 196.0453, 232.6055, 225.0783
     )), .Names = c("Name", "Score"), class = "data.frame", row.names =
c(NA,
24L))


I want to compare groups with CTK100 and with all the groups and want to
save the p-values and mean for each of that particular group (for example:
mean for CTK and all)
Similarly, for other groups like that CTK121 etc...

Is there any way to automate this process?

Thanks for your advice !!!!!

Nico

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