Suppose You Computed a 95% Confidence Interval for the Difference

question 4

Multiple Choice

Suppose you computed a 95% confidence interval for the difference in mean weight between two species of snakes in a large nature reserve (species #1 - species #2) , and your interval is -3.6 to 61.6 ounces.What can you conclude?

• A)You cannot say, even with 95% confidence that the observed difference in sample means represents a real difference in the population means.
• B)Because the interval extends so much further in the positive direction than the negative, the evidence suggests that species #1 weighs more than species #2 on average, but we can't say for sure.
• C)If we were willing to use 90% confidence, we could say that the observed difference in the sample means represents a real difference in the population means.
• D)All of the above.

---

Definitions:

Concepts

Mental representations that organize and categorize the world around us, allowing individuals to understand and interact with their environment intelligently.

Categories

Groups or classes of objects, events, or concepts that share common characteristics or features, making it easier to organize knowledge.

Explanation-based

Pertaining to an approach in artificial intelligence and cognitive science that focuses on understanding or generating explanations for how systems work or behave.

Ecological

Pertaining to the study of organisms and their interactions with the environment.