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    Stratified Random Sampling of teachers.

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    A researcher wants to take random samples from an existing dataset of over 1000 teachers for a study on the prevalence of voice hoarseness among primary school teachers and secondary school teachers , but divide them into 2 groups(49 teachers in one group that is primary school teachers and 49 teachers in the other group that is secondary school teachers; so 98 teachers total). Please explain specifically how the researcher would get the equal sample using stratified random sampling

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    Solution Preview

    Stratified random sampling is a two step process.

    Step 1. Stratify: Given population data segregate into mutually exclusive groups as per the given condition, e.g., in the given ...

    Solution Summary

    In-brief explanation of stratified random sampling.