MA-292 Sheet 2 Flashcards

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Flashcards covering key concepts from the Further Statistical Analysis MA-292 Sheet 2 notes.

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6 Terms

1
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Mann-Whitney U Test

Nonparametric test used for two independent samples; equivalent to an unpaired t-test.

2
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Wilcoxon Signed-Rank Test

Nonparametric test used for two dependent samples (paired data); equivalent to a paired t-test.

3
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Nonparametric tests underlying procedure

Rank the data, and use these ranks to perform the test, rather than the raw data itself.

4
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Hypotheses for Wilcoxon signed-rank test

H0: the median difference is 0; H1: the median difference is not 0.

5
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Corrected R code to install nortest package

install.packages("nortest")

6
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Purpose of lillie.test(Differences) in R

Test of normality on 'Differences'.