A Research Study Hypothesized That People Who Drive Hybrid Cars

Multiple Choice

A research study hypothesized that people who drive hybrid cars are less likely to smoke than people who drive minivans or SUVs (who do not differ from each other) . In conducting a one-way ANOVA with this data, how could the null hypothesis (H₀) be stated?

A) H₀: Hybrid < Minivan = SUV
B) H₀: μHybrid = μMinivan = μSUV
C) H₀: all μs are not equal
D) H₀: Hybrid ≠ Minivan = SUV