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Data for Exercise 7.81
Quality
A data frame/tibble with 15 observations on two variables
a character variable with values Process1 and Process2
Process1
Process2
results of a quality control test
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
# NOT RUN { boxplot(score ~ process, data = Quality, col = "lightgreen") t.test(score ~ process, data = Quality) # }
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