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Determination of Sample Size: A Review of Statistical Theory. Chapter 13. Sample v. Population. Inferential Descriptive Sample statistics Population parameters. Tables. Frequency distribution Percentage distribution Probability Proportion. Measures of Central Tendency. Mean Median

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## Determination of Sample Size: A Review of Statistical Theory

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**Determination of Sample Size: A Review of Statistical Theory**Chapter 13**Sample v. Population**• Inferential • Descriptive • Sample statistics • Population parameters**Tables**• Frequency distribution • Percentage distribution • Probability • Proportion**Measures of Central Tendency**• Mean • Median • Mode**Measures of Dispersion**• Range • Formula • Deviation (Variance) • Formula • Standard Deviation • Formula**The Normal Distribution**• Three Characteristics • Standardized Normal Distribution • Why do I have to know this? • What does it mean? • Variable • Formula • Example**Population Distribution, Sample Distribution, and Sampling**Distribution • Population: µ ơ • Sample: S • Sampling Distribution • Standard Error of the Mean • Symbol • Formula**Central Limit Theorem**• As sample size increases, the distribution of the mean, of any sample approaches a normal distribution.**Estimation of Parameters**• Point Estimates • What is it? • Confidence Intervals • Question #10, page 343**Sample Size for Means**• Sample Error • Formula • Factors • Variance • Magnitude of error (confidence interval) • Confidence level**Sample Size for Means**• Formula • Question #11 page 343 • Question #12 page 343**Sample Size for Proportions**• Standard Error for Proportion • Formula • Confidence interval • Formula • Sample Size • Formula

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