As a fun exercise, take the following little quiz. For your answer to each one,

Question

As a fun exercise, take the following little quiz. For your answer to each one, give a 90% confidence level: For example, if the question were "How many teams are in the NHL," a student with no idea might give an answer of 5-40, a student with a good idea might give an answer of 28-32, and so forth. This exercise is intended to get you to think about confidence intervals and understanding the basic idea of what they are all about. It also illuminates the duality of confidence intervals--if you are 90% sure that the correct number is between X and Y, then 90% of all such confidence levels should contain the true value.

5. What is the diameter of the moon, in miles?

6. What is the weight of an empty Boeing 747, in pounds?

7. In what year was Mozart born?

8. What is the gestation period of an Asian elephant, in days?

9. What is the air distance from London to Tokyo, in miles?

10. What is the deepest known point in the ocean, in feet?

Explanation / Answer

5) At 90% confidence level diameter of the moon lies between 1950 and 2350 miles.

6) At 90% confidence level weight of an empty Boeing 747 lies between 390000 pounds and 430,500 pounds

7) At 90% confidence level year of Mozart born lies between 1740 and 1830.

8) At 90% confidence level gestation period of an Asian elephant lies between 16 - 23 months.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.