Autogear {BSDA}

Number of defective auto gears produced by two manufacturers

Description

Data for Exercise 7.46

Usage

Autogear

Format

A data frame/tibble with 20 observations on two variables

defectives

number of defective gears in the production of 100 gears per day

manufacturer

a factor with levels A and B

References

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

Examples

t.test(defectives ~ manufacturer, data = Autogear)
wilcox.test(defectives ~ manufacturer, data = Autogear)
t.test(defectives ~ manufacturer, var.equal = TRUE, data = Autogear)