Charles Darwin's study of cross-fertilized and self-fertilized plants
Data for Exercise 7.62
Darwin
A data frame/tibble with 15 observations on three variables
number of pot
height of plant (in inches) after a fixed period of time when cross-fertilized
height of plant (in inches) after a fixed period of time when self-fertilized
Darwin, C. (1876) The Effect of Cross- and Self-Fertilization in the Vegetable Kingdom, 2nd edition, London.
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
differ <- Darwin$cross - Darwin$self qqnorm(differ) qqline(differ) shapiro.test(differ) wilcox.test(Darwin$cross, Darwin$self, paired = TRUE) rm(differ)
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