Comparison of mixing processes
The percentage of “white area” in a sample of a dark product is used to evaluate how well a white raw material has been mixed into the product. Data are obtained from two processes.
A data frame with 48 observations on the following 2 variables.
processa factor with levels A B
whiteareaa numeric vector
str(whitearea)
qqmath(~ whitearea, whitearea, groups = process, aspect = 1,
auto.key = list(space = "right", title = "Process"),
xlab = "Standard normal quantiles",
ylab = "White area")
t.test(whitearea ~ process, whitearea)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.