chapter on inference on categorical data. please explain steps in detail.

1. Roulette Wheel A pit boss suspects that a roulette wheel is out of balance. A roulette wheel has 18 black slots, 18 red slots, and 2 green slots. The pit boss spins the wheel 500 times and records the following frequencies: Outcome Frequency Black 233 Red 237 Green Is the wheel out of balance? Use the a = 0.05 level of significance