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SPS / Mr. Hansen |
Name: ___________KEY___________ |
Confidence Interval Quiz Answer Key
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1. |
39 |
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2. |
4132 miles |
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3. |
12 (formerly 13, but
Indonesia withdrew in 2008) |
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4. |
39 |
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5. |
2160 miles |
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6. |
195 tons, or 390,000 pounds |
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7. |
1756 |
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8. |
645 days, or about 21
months |
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9. |
5959 miles |
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10. |
35,994 feet (as of June
2009) |
How did you do? Did you get at least 8 right? (Remember, you should get 8 or 9 right if your intervals were truly “90% confidence” intervals.) Don’t feel bad if you didn’t: I have given this quiz to scores of people, and almost all of them, myself included, were overconfident.
If you are willing to share your results, please send e-mail to modd “insert at-sign” modd.net.