COURSE TITLE:  SAMPLING METHODS

COURSE CODE: STA 2203

COURSE  CONTENT

Ø INTRODUCTION

·        Definition of terms and concepts

·        Objectives of the survey

·        Data collected

·        Methods of measurement

·        Sampling frame, types of sampling frames and sampling defects.

Ø Sampling theory

·        Sampling methods

·        Types of samples (non-random and random samples)

Ø survey design

·        types of surveys

·        census versus sample surveys

·        advantages and disadvantages of censuses and surveys.

·        Organization of surveys

Ø Desirable properties of estimators

·        Unbiasedness

·        Efficiency, mean square error

·        Sufficiency

·        Consistency

Ø Errors in surveys

·        Sampling errors, their causes and remedies

·        Non-sampling errors, causes and remedies

Ø Sampling procedures/ techniques

                               i.            Simple random sampling

·        With replacement and without replacement

·        Computation of means and variances

·        Regression and ratio estimators

·        Sample size determination

                             ii.            Stratified sampling

·        Definition

·        Basis of stratification

·        Sample selection (proportionate allocation, optimum allocation)

·        Means and variances

                          iii.            Systematic sampling

·        Definition

·        Advantages and disadvantages

·        Mean and variance computation

                           iv.            Cluster sampling

·        Definition

·        Advantages and disadvantages

·        Cluster selection

                             v.            Multi-stage cluster sampling

·        Intra-cluster correlation

·        Design effect

·        Sample selection procedures

·        Application

REFERENCES

·        Survey sampling by Leslie Kish

·        Sampling techniques by Cochran

·        The statistical analysis of time series by Anderson

·        Survey methods in social investigation by C.A Moser and G. Kalton

·        Sample surveys with special reference to Africa by Prof. Ben Kiregyera

·        Survey methods and practices; statistics Canada (2003).

Statistics in practice, sample surveys; Duke Energy.