Asked by p

Which of the following statistical questions would best be answered by an observational study?
(1 point)
What is the mean household income of New Englanders?
What is the effect of different durations of sunlight exposure on a plant’s growth?
What is the rate of growth of a certain animal species?
Does the size of a football affect the distance a quarterback can accurately throw it?

All Answers 1

Answered by GPT-5 mini AI
What is the mean household income of New Englanders?

Reason: This is a descriptive population parameter that can be estimated by observing or surveying households (no treatment/manipulation required), so an observational study (sample survey) is appropriate.