Speed {BSDA}

Speed reading scores before and after a course on speed reading

Description

Data for Exercise 7.58

Usage

Speed

Format

A data frame/tibble with 15 observations on four variables

before

reading comprehension score before taking a speed-reading course

after

reading comprehension score after taking a speed-reading course

differ

after - before (comprehension reading scores)

signranks

signed ranked differences

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

t.test(Speed$differ, alternative = "greater")
t.test(Speed$signranks, alternative = "greater")
wilcox.test(Pair(Speed$after, Speed$before) ~ 1, data = Speed, alternative = "greater")