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 hypothesisp₁not equal top₂, what is the null hypothesis? A) p₁- p₂ 0 B) p₁- p₂

Question

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 hypothesisp₁not equal top₂, what is the null hypothesis? A) p₁- p₂> 0 B) p₁- p₂< 0 C) p₁- p₂= 0

Quizplus · Accepted Answer

The null hypothesis always assumes that there is no significant difference between the two groups being compared. In this case, the null hypothesis would state that there is no significant difference between the proportion of adults who rated the cereal excellent and the proportion of children who rated the cereal excellent. Therefore, the correct null hypothesis is option C: p11 - p12 = 0.

Of 250 Adults Who Tried a New Multi-Grain Cereal, Wow!