Rocket Propellant
Five different formulations of a rocket propellant x1 may be used in an aircrew escape systems on the observed burning rate Y. Here, each of the formulation is prepared by mixing from a batch of raw materials x2 which can support only five formulations required for the purpose of testing.
data(rocket)
A data frame with 25 observations on the following 4 variables.
yburning rate
batchraw materials batch
opexperience of the operator
treatformulation type of the propellant A B C D E
Montgomery, D. C. (1976-2012). Design and Analysis of Experiments, 8e. J.Wiley.
data(rocket) matrix(rocket$treat,nrow=5) par(mfrow=c(1,3)) plot(y~factor(op)+factor(batch)+treat,rocket) rocket_aov <- aov(y~factor(op)+factor(batch)+treat,rocket)
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