Introduction to Statistics (MAT/SST 115.03 2008S)

R notes for Activity 23-5: Muscle Fatigue


Although the book does not provide the data in electronic format, I've put it into the file MuscleFatigue.csv for you. You can load it with

MF = read.csv("/home/rebelsky/Stats115/Data/MuscleFatigue.csv")

To compute the difference between men and women, you would use

MF$Man-MF$Woman

To build a dotplot for these data, you would use

library(BHH2, lib="/home/rebelsky/Stats115/Packages")
dotPlot(MF$Man-MF$Woman)

You should be able to figure out how to do the t-test and confidence interval.

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Samuel A. Rebelsky, rebelsky@grinnell.edu

Copyright (c) 2007-8 Samuel A. Rebelsky.

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