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Information about Ch. 19 Confidence Intervals

Published on February 20, 2009

Author: christjt

Source: slideshare.net

Calculation of confidence intervals is presented. Also included is determining sample size for a most conservative estimate. Many other topics dealing with the normal model are demonstrated.

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POPULATION p = ??? SAMPLE Construct an interval to determine p. Conditions must be met. 1. Take a sample 2. Get sample statistic (p-hat) 3. Determine standard error (root[(p-hat)(q-hat)/n]) 4. Determine margin of error (using critical value) 5. Construct interval p-hat +/- S.E.(p-hat)

Chapter 19 Confidence Intervals for Proportions 329 13.Teenage drivers. a) Plausible independence condition: There is no reason to believe that accidents ...

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Chapter 19 Confidence Intervals for Proportions 309 d) Population – all employees at the company; sample – all employees during the specified

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A Confidence Interval! ... The next video shows you how to find confidence intervals for proportions using your TI calculator. ... Ch 19 Try-It-Yourself ...

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4 •The figure to the right shows that some of our confidence intervals (from 20 random samples) capture the true proportion

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Chapter 19: Confidence Intervals for Proportions 13. What assumptions and conditions must you consider before creating a

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AP Statistics Chapter 19 - Confidence Intervals for Sample Proportions ... AP Stat Ch 19 Video 1 Confidence Intervals for Proportions.mp4 - Duration: ...

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4 Inference To infer means to draw a conclusion. 5 Confidence Level The success rate of the method used to construct the interval. It provides information ...

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Conditions and sample problems for confidence intervals. Also interpretation of a confidence interval and a confidence level.

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