ttest: Interpretation of 2-Sample t Test

R/exams

5 years ago

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Name:

ttest

Type:

mchoice

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:

Other supplements:

Template:

ttest.Rnw

ttest.Rmd

Raw: (1 random version)

ttest.tex

ttest.md

PDF:

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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