CONFIDENCE INTERVAL REVIEW-corrected-1

CONFIDENCE INTERVAL REVIEW-corrected-1 - CONFIDENCE...

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Unformatted text preview: CONFIDENCE INTERVAL REVIEW-corrected version 1. A confidence interval estimates a range of population means given a _______________ 2. Which if these confidence intervals will have the widest range? 95, 99, 99.9 or 99.99? 3. Which if these confidence intervals will have the narrowest range? 95, 99, 99.5, 99.9 or 99.99? 4. When the population standard deviation is known, what kind of a distribution do we use to estimate a confidence interval? 5. When the population standard deviation is NOT known, then what kind of a distribution do we use to estimate a confidence interval? 6. Question parameters: CI bottom = 120 CI top = 126 A confidence interval has been determined to be 120< u <126, what was the sample mean that was used to produce this confidence interval? ANSWERS 1. A confidence interval estimates a range of population means given a _______________...
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This note was uploaded on 09/28/2010 for the course PSYCH 100A 328-304-20 taught by Professor Shams during the Spring '10 term at UCLA.

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CONFIDENCE INTERVAL REVIEW-corrected-1 - CONFIDENCE...

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