The students would be exposed to elementary, systematic, stratified and two stage sampling techniques. It would help them in understanding the concepts involved in planning and designing their surveys, presentation of survey data analysis of survey data and presentation of results.
Course |
Course Outcomes |
Learning and teaching strategies |
Assessment Strategies |
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Course Code |
Course Title |
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24STT223 |
Sampling Techniques (Theory) |
CO 47: Analyze simple random sampling methods, inverse sampling and estimate population parameters. CO 48: Evaluate the application of stratified sampling, systematic sampling, cluster sampling techniques and analyze two-stage sampling with unequal second-stage units. CO 49: Utilize auxiliary information for estimation using ratio, regression, and product methods, and implement Hartley & Ross and Quenoullie's techniques on sample. CO 50: Determine the sample size using double sampling and Proportion to Size with and without replacement method. CO 51: Evaluate non-sampling errors and utilize Hanson and Horvitz, Politz & Simmon Warness methods to mitigate their impact on estimation accuracy. CO 52: Contribute effectively in course-specific interaction |
Approach in teaching: Interactive Lectures, Group Discussion, Classroom Assignment, Problem Solving Sessions.
Learning activities for the students: Assignments, Seminar, Presentation, Subject based Activities. |
Classroom Quiz, Assignments, Class Test, Individual Presentation. |
Simple random sampling with and without replacement: Definition, properties, estimation of population mean, its variance and estimates of variance, optimum properties of sample mean, estimation of sample size, estimation of properties, Inverse sampling.
Stratified Sampling: estimation of population, mean under proportional, optimum and Neyman allocation, comparison and estimation of gain in precision, Post stratification. Systematic sampling: estimation of mean, its variance and estimation of variance. Comparison with stratified sampling. Cluster sampling and two stage sampling with unequal number of second stage unit.
Use of Auxiliary Information: Ratio, difference, regression and product methods of estimation and properties. Unbiased ratio type estimates: Hartley& Ross, Quenoullie’s Techniques.
Double sampling and its uses in ratio estimation, Stratified sampling. Population proportion to size with replacement and without replacement (PPSWR or PPSWOR) sampling, cumulative total and Lahiri’s method. Ratio estimator under varying probabilities, Midzuno scheme of sampling.
Non Sampling errors: observational error, mathematical model, the sample mean, its variance and estimation of the variance. Non-Response error: Hanson and Horvitz, Politz & Simmon Warness technique.
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