FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The strata should be mutually exclusive and collectively exhaustive so that every population element should be assigned to one and only one stratum.
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Across the strata, the elements should be as heterogeneous as possible.
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Elements within a stratum should be as homogeneous as possible.
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Stratifications variables should not be closely related to the characteristic of interest.
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Stratification variables should be easy to measure and apply.
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Detailed explanation-1: -Answer: Stratifications variables should not be closely related to the characteristic of interest. Criteria for the selection o…
Detailed explanation-2: -To stratify, first divide the target population into subgroups, or stratum. You may stratify on variables that you believe may significantly impact the outcome variable and/or on subgroups that you are particularly interested in evaluating.
Detailed explanation-3: -The population is divided into various subgroups such as age, gender, nationality, job profile, educational level etc. Stratified sampling is used when the researcher wants to understand the existing relationship between two groups. The researcher can represent even the smallest sub-group in the population.