Perceived math ability for 13-year olds by gender

Source: R/BSDA-package.R

Data used in Exercise 8.57

Ability

Format

A data frame/tibble with 400 observations on two variables

gender

a factor with levels girls and boys

ability

a factor with levels hopeless, belowavg, average, aboveavg, and superior

References

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

Examples


CT <- xtabs(~gender + ability, data = Ability)
CT
#>        ability
#> gender  hopeless belowavg average aboveavg superior
#>   girls       56       61      54       21        8
#>   boys        35       43      61       42       19
chisq.test(CT)
#> 
#> 	Pearson's Chi-squared test
#> 
#> data:  CT
#> X-squared = 19.869, df = 4, p-value = 0.00053
#>