Determining Sample Size and Power in Research Studies: A Manual for Researchers (Verma J. P.)(Pevná vazba)

Determining Sample Size and Power in Research Studies: A Manual for Researchers (Verma J. P.)(Pevná vazba)

Determining Sample Size and Power in Research Studies: A Manual for Researchers (Verma J. P.)(Pevná vazba)

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Preface

Acknowledgements

1 Introduction to Sample Size Determination

Introduction

Issue of Power due to inappropriate sample size

Some case studies

Flow Diagram of Determining sample size and power

Summary

2 Understanding Statistical Inference

Introduction

Estimating Parameters

Estimating Population Mean

Confidence Coefficient

Confidence Interval

Factors Affecting Confidence Interval

Estimating Population Proportion

Hypothesis Testing

Type I and Type II Errors

Power of the Test

Relationship between Type I and Type II Errors

One Tailed and Two Tailed Tests

Procedure in Hypothesis Testing Experiment

Effect Size

Summary

3 Understanding Concepts in Estimating Sample Size in

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