Chapter 11: Programming with Matrices and Vectors 423
11.12 Exercises
1.UseSAS/IML to perform a randomization test on the packaging and log-bacterial
growth data.
3
()
2
4
1
∑
=
−=
i
i
YYCSS
In this problem, you have n
1
=n
2
=n
3
=n
4
=3. Use a statisticthat
measures the difference in the four group means. For example:
i
Y
is the arithmetic mean of the i
th
group.
Y
is the mean of all of the
observations.Note: This is a redo of a Chapter 9 exercise.
2.Write a SAS/IML module to conduct a small Monte Carlo simulation that shows
how the CI for the mean performs (e.g. coverage probability properties) when
estimating the mean of an exponential distribution. ...
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