Example 28.2: Computing Chi-square Tests for One-Way Frequency Tables This example examines whether the children's hair color (from Example 28.1) has a specified multinomial distribution for the two ...

The contingency table in Output 28.5.1 displays eye and hair color in the order in which they appear in the Color data set. The Pearson chi-square statistic in Output 28.5.2 provides evidence of an ...

Example of How to Use a Chi-Square (χ2) Statistic For example, consider an imaginary coin with exactly a 50/50 chance of landing heads or tails and a real coin that you toss 100 times.

Chi-square tests are often overused or misinterpreted in statistical analysis. They are sometimes applied without consideration for their assumptions and limitations, leading to invalid conclusions.