powered by
Data for Exercise 7.77
Corn
A data frame/tibble with 12 observations on three variables
corn yield with new meathod
corn yield with standard method
new minus standard
new
standard
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
# NOT RUN { boxplot(Corn$differences) qqnorm(Corn$differences) qqline(Corn$differences) shapiro.test(Corn$differences) t.test(Corn$new, Corn$standard, paired = TRUE, alternative = "greater") # }
Run the code above in your browser using DataLab