Description
1.
Chapter 11, Section 11.2, Exercise 16 a b c e. “In an experiment to assess … curing time …” Give the F statistic, rejection region, and conclusion for parts (b) and (c).
For the T Method (underscoring) procedure in part e, see Formula 11I.
Use Formula 11H to find the df’s.
2.
Chapter 11, Section 11.2, Exercise 18
Assume a two-way interaction model with fixed-effects. The ANOVA table and interaction plot are given below.
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intall.packages(“Devore7”) data(ex11.16) out=aov(Response~Formulat*Speed,data=ex11.16) summary(out)
with(ex11.16, {
interaction.plot(Formulat, Speed, Response, trace.label = “speed”, fixed = TRUE, lwd=2)
})
