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 chi-square goodness-of-fit test examines whether the children's hair color has a specified multinomial distribution for two regions. The hypothesized distribution for hair color is 30 percent fair ...

In view of the fact that the sample size needed for a specified power does not vary linearly with effect size, the traditional approach typically leads to less power than is desired for the specified ...