Math placement test score for 35 freshmen females and 42 freshmen males
Data for Exercise 7.43
Remedial
A data frame/tibble with 84 observations on two variables
a character variable with values female and male
math placement score
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
boxplot(score ~ gender, data = Remedial,
col = c("purple", "blue"))
t.test(score ~ gender, data = Remedial, conf.level = 0.98)
t.test(score ~ gender, data = Remedial, conf.level = 0.98)$conf
wilcox.test(score ~ gender, data = Remedial,
conf.int = TRUE, conf.level = 0.98)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.