BSDA (version 1.2.1)

Mathpro: Math proficiency and SAT scores by states

Description

Data for Exercise 9.24, Example 9.1, and Example 9.6

Usage

Mathpro

Format

A data frame/tibble with 51 observations on four variables

state

a factor with levels Conn, D.C., Del, Ga, Hawaii, Ind, Maine, Mass, Md, N.C., N.H., N.J., N.Y., Ore, Pa, R.I., S.C., Va, and Vt

sat_math

SAT math scores for high school seniors

profic

math proficiency scores for eigth graders

group

a numeric vector

References

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

Examples

model <- lm(sat_math ~ profic, data = Mathpro)
plot(sat_math ~ profic, data = Mathpro, ylab = "SAT", xlab = "proficiency")
abline(model, col = "red")
summary(model)
rm(model)