A survey of 1,000 consumers asked about brand preference and age group. The results: - Age 18–30: Brand X = 180, Brand Y = 120, No preference = 50 (Total: 350) - Age 31–50: Brand X = 150, Brand Y = 160, No preference = 40 (Total: 350) - Age 51+: Brand X = 80, Brand Y = 140, No preference = 80 (Total: 300)