Medical Wonders is a specialized interior design company focused on healing artwork.The CEO, Kathleen Kelledy claims that artwork has healing effects for patients staying in a hospital, as measured by reduced length of stay.Her current client is a children's cancer hospital.Kathleen is interested in determining the effect of three different pieces of healing artwork on children.She chooses three paintings (a horse photo, a bright abstract, and a muted beach scene)and randomly assigns six hospital rooms to each painting.Kathleen's null hypothesis is _____________. A)$\mu$₁ =$\mu$₂ = $\mu$₃ B)$\mu$₁ $\neq$ $\mu$₂ $\neq$ $\mu$₃ C)$\mu$₁ $\ge$ $\mu$₂ $\ge$ $\mu$₃ D)$\mu$₁ $\le$ $\mu$₂ $\le$$\mu$₃ E)$\mu$₁ $\le$ $\mu$₂ ≥ $\mu$₃

Question

Quizplus · Accepted Answer

The null hypothesis in an experiment typically states that there is no effect or difference between the groups being tested. In this context, Kathleen's null hypothesis would assert that there is no difference in the effect of the three different pieces of healing artwork on children's hospital stay length, meaning all three paintings have the same effect.

Medical Wonders Is a Specialized Interior Design Company Focused on Healing