Of 250 Adults Who Tried a New Multi-Grain Cereal, "Wow! $\pi$

Multiple Choice

Of 250 adults who tried a new multi-grain cereal, "Wow!", 187 rated it excellent; of 100 children sampled, 66 rated it excellent. Using the 0.1 significance level and the alternate hypothesis $\pi$ ₁
not equal to $\pi$ ₂
, what is the null hypothesis?

A) H₀: $\pi$ ₁ > $\pi$ ₂
B) H₀: $\pi$ ₁ < $\pi$ ₂
C) H₀: $\pi$ ₁ = $\pi$ ₂
D) H₀: $\pi$ ₁ $\neq$$\pi$ ₂