Perceived math ability for 13-year olds by gender
Data used in Exercise 8.57
Ability
A data frame/tibble with 400 observations on two variables
a factor with levels girls
and boys
a factor with levels hopeless
, belowavg
, average
, aboveavg
, and superior
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
CT <- xtabs(~gender + ability, data = Ability) CT chisq.test(CT)
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