Description Usage Format References Examples
There was on a measurement of velocity of a baseball throw in meters per second. Three groups of subjects were involved, two being subjected to special experimental training and the third acting as a control with no special training. Each group has 7 subjects and each subject was given a pretest and posttest.
1 | data("baseball")
|
A data frame with 42 observations on the following 4 variables.
velocity
a numeric vector
test
a factor with levels Pre
Post
Group
a factor with levels I
II
III
Subject
a numeric vector
Example 11.4 in Fundamental Concepts in the Design of Experiments (3rd ed.) - Charles R. Hicks
1 2 |
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