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Confidence Intervals with Means

Confidence Intervals with Means. Chapter 9. What is the purpose of a confidence interval?. To estimate an unknown population parameter. One-Sample z Confidence Interval for m. 2. The sample size n is large (generally n ? 30 ) , and

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Basic Statistics

Basic Statistics. Inferences About Two Population Means. STRUCTURE OF STATISTICS. TABULAR. DESCRIPTIVE. GRAPHICAL. NUMERICAL. STATISTICS. ESTIMATION. INFERENTIAL. TESTS OF HYPOTHESIS. Research situation for independent two-samples t-Test.

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Discussion 2

Discussion 2. 1/13/2014. Outline. Confidence limits Power One sample Population variance known or unknown Two sample Population variance known or unknown Sample size estimation One sample (confidence interval) Two sample (detect differences between two means) How to read data in SAS.

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97 views • 9 slides

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Sample confidence interval - PowerPoint PPT Presentation

Confidence Intervals with Means

Basic Statistics

Discussion 2