A researcher asks 10 people to take sips out of two cups of soda (one with Coke and the other Pepsi) and rate the flavor of both sodas. In analyzing this data, how should the null hypothesis be stated? A) H₀: µ_D = 0 B) H₀: Coke Pepsi C) H₀: Coke = Pepsi D) H₀: µ₁ = µ₂

Question

A researcher asks 10 people to take sips out of two cups of soda (one with Coke and the other Pepsi) and rate the flavor of both sodas. In analyzing this data, how should the null hypothesis be stated? A) H₀: µ_D = 0 B) H₀: Coke > Pepsi C) H₀: Coke = Pepsi D) H₀: µ₁ = µ₂

Quizplus · Accepted Answer

The null hypothesis in an experiment comparing two groups typically states that there is no difference between the groups. In this case, the correct statement of the null hypothesis would be that the mean rating difference between the two sodas is zero, indicating no preference between Coke and Pepsi, which is represented by the mathematical notation in choice A.

A Researcher Asks 10 People to Take Sips Out of Two