Introduction to Sample size decision
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This document discusses sample size decision in research methodology. It defines key terms like population and sample. It also covers different sampling methods like probability and non-probability sampling. The document notes that factors like the nature and size of the population, complexity of data collection, desired level of accuracy and confidence level influence sample size decision. It distinguishes between sampling errors that occur due to the selection of samples and non-sampling errors caused by non-response or incorrect responses. The conclusion emphasizes representing the population accurately with the appropriate sample size to minimize errors.
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Introduction to Sample size decision
- 1. Presenting by Hiraj Ramachandran Research Methodology 4/26/2016 1
- 2. Introduction to Sample Size Decision 4/26/2016 2
- 3. POPULATION 4/26/2016 3 Totality of statistical data forming a subject of investigation.
- 4. 4/26/2016 4 SAMPLE Portion of population which is examined with a view to estimating the characteristics of population.
- 6. 4/26/2016 6 Sample Size Decision
- 7. To be Remind 4/26/2016 7 Sample Mean VS Population Mean Representativeness Accuracy
- 8. Factors influence sample size decision 4/26/2016 8 Nature and Population Complexity of Tabulation Issues in Collection of Data Type of Sampling Basic Information's Degree of Accuracy Level of Confidence
- 9. Sampling Error • Sampling error refers to differences between the sample and the population that exist only because of the observations that happened to be selected for the sample 4/26/2016 9
- 10. Types of Sampling Errors 4/26/2016 10 Sample Errors • Act of taking sample • Deference between Census • Statistical Error Non Sample Errors • Response Error • Non Response Error
- 11. Conclusion 4/26/2016 11 Remind • Accuracy • Representativeness • Sample Mean VS Population Mean Factors •Nature and Population •Complexity of Tabulation •Issues in Collection of Data •Type of Sampling •Basic Information's •Degree of Accuracy •Level of Confidence Errors • Sample Errors • Non Sample Errors
- 12. ? Questions 12
- 13. What’s Your Message?THANK YOU 4/26/2016 13
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