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Chapter 8 Questions
8.1
Treatments are the populations/processes that are being studied; we examine the effect of a factor on the response
variable at different levels, those levels are treatments.
8.2
To conclude with confidence that there are (or are not) differences in the treatment means, the population/process
needs to be divided into segments of potential variation – from those segments we can derive quantities that will better
allow us to decide whether there are (or are not) differences in the means.
8.3
8.4
Graphical analysis is not a substitute for ANOVA, it is a prerequisite – in order to proceed with analysis of
variance the examiner must ensure the 4 assumptions are met: samples are independent, normal distributions, equal
8.5
8.6
(a) SSE would be calculated as it typically would, by adding the squared difference between each treatment value
and the average for that treatment – it would result in the contribution of random error to the total variation.
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 Spring '09
 CANAVOS

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