ttest: Interpretation of 2-Sample t Test

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Name:
ttest
Type:
Description:
Results of a 2-sample t.test() in R need to be interpreted regarding significance, type of alternative, and comparison of the underlying empirical means.
Solution feedback:
Yes
Randomization:
Random numbers, text blocks, and R output
Mathematical notation:
Yes
Verbatim R input/output:
Yes
Images:
No
Other supplements:
No
Raw: (1 random version)
PDF:
ttest-Rnw-pdf
ttest-Rmd-pdf
HTML:
ttest-Rnw-html
ttest-Rmd-html

(Note that the HTML output contains mathematical equations in MathML. It is displayed by browsers with MathML support like Firefox or Safari – but not Chrome.)

Demo code:

library("exams")

set.seed(1090)
exams2html("ttest.Rnw")
set.seed(1090)
exams2pdf("ttest.Rnw")

set.seed(1090)
exams2html("ttest.Rmd")
set.seed(1090)
exams2pdf("ttest.Rmd")

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