Anxiety {BSDA}

Math test scores versus anxiety scores before the test

Description

Data used in Exercise 2.96

Usage

Anxiety

Format

A data frame/tibble with 20 observations on two variables

anxiety

anxiety score before a major math test

math

math test score

References

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

Examples

plot(math ~ anxiety, data = Anxiety, ylab = "score",
     main = "Exercise 2.96")
with(data = Anxiety,
cor(math, anxiety)
)
linmod <- lm(math ~ anxiety, data = Anxiety)
abline(linmod, col = "purple")
summary(linmod)