A Researcher Invokes a Pilot Sample and Finds That Respondents

question 36

Essay

A researcher invokes a pilot sample and finds that respondents from households
with less than $50,000 annual income respond very differently than respondents from households with greater than $50,000 annual income,with regard to the key survey questions.In addition,the researcher's preliminary results show greater variance among respondents in the over $50,000 households.Given the preceding,which probability sampling method should the researcher invoke and why?

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Definitions:

Function Prototype

A declaration of a function that specifies the function's name, return type, and parameters, but not its body.

Prototype

In programming, a prototype refers to the declaration of a function specifying its return type, name, and parameters, but not its body.

Void

In programming, void indicates that a function does not return a value.

Link

In computing, a reference that points to another document or a specific part of a document, commonly used on the web.