(10 in 2nd Can. Ed.)
Hypothesis Testing Using the
Chi Square (χ2) Distribution
•The basic logic of Chi Square.
•The terminology used with bivariate tables.
•The computation of Chi Square with an
example problem using the Five Step Model
•Chi Square is a test of significance based on bivariate
•We are looking for significant differences between
the actual cell frequencies in a table (fo) and those
that would be expected by random chance (fe).
•The data are often presented in a table format. If
starting with raw data on two variables, a bivariate
table must be created first.
•Must have a title.
•Cells are intersections of columns and rows.
•Subtotals are called marginals.
•N is reported at the intersection of row and