BSDA (version 1.2.0)

German: Number of errors in copying a German passage before and after an experimental course in German

Description

Data for Exercise 7.60

Usage

German

Format

A data frame/tibble with ten observations on three variables

student

a character variable indicating student number

when

a character variable with values Before and After to indicate when the student received experimental instruction in German

errors

the number of errors in copying a German passage

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

# NOT RUN {
t.test(errors ~ when, data = German, paired = TRUE)
wilcox.test(errors ~ when, data = German)

# }
# NOT RUN {
T8 <- tidyr::spread(German, when, errors) %>%
mutate(di = After - Before, adi = abs(di), rk = rank(adi), srk = sign(di)*rk)
T8
qqnorm(T8$di)
qqline(T8$di)
t.test(T8$srk)
# }
# NOT RUN {
# }