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Determination of Sample Size: A Review of Statistical Theory

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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  1. Determination of Sample Size: A Review of Statistical Theory Chapter 13

  2. Sample v. Population • Inferential • Descriptive • Sample statistics • Population parameters

  3. Tables • Frequency distribution • Percentage distribution • Probability • Proportion

  4. Measures of Central Tendency • Mean • Median • Mode

  5. Measures of Dispersion • Range • Formula • Deviation (Variance) • Formula • Standard Deviation • Formula

  6. The Normal Distribution • Three Characteristics • Standardized Normal Distribution • Why do I have to know this? • What does it mean? • Variable • Formula • Example

  7. Population Distribution, Sample Distribution, and Sampling Distribution • Population: µ ơ • Sample: S • Sampling Distribution • Standard Error of the Mean • Symbol • Formula

  8. Central Limit Theorem • As sample size increases, the distribution of the mean, of any sample approaches a normal distribution.

  9. Estimation of Parameters • Point Estimates • What is it? • Confidence Intervals • Question #10, page 343

  10. Sample Size for Means • Sample Error • Formula • Factors • Variance • Magnitude of error (confidence interval) • Confidence level

  11. Sample Size for Means • Formula • Question #11 page 343 • Question #12 page 343

  12. Sample Size for Proportions • Standard Error for Proportion • Formula • Confidence interval • Formula • Sample Size • Formula

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