POS 330 SQ 9-4

POS 330 SQ 9-4 - Study Questions August 31- September 4...

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Study Questions August 31- September 4 Lauren Napolitano 1.) Define sampling. Sampling is used for a poll or survey, and it is the selection of a smaller group of people within a larger population. 2.) What is the preferred mode of sampling? The preferred mode of sampling is probability sampling because it is usually considered the main feature that makes a poll or survey scientific. 3.) What’s the difference between probability and non-probability sampling? The difference between probability and non-probability sampling is that probability sampling is scientific; whereas non-probability sampling is not. Also, non-probability sampling allows respondents to select themselves (or self-select) into a sample. Probability sampling chooses a careful, yet random group of respondents. Another form of non-probability sampling is choosing respondents by convenience. 4.) What is simple random sampling? In simple random sampling, everyone in a population has an equal chance of being selected to participate in a survey as part of the sample. In order to have a simple random sample, there must be a list of everyone in the population that you wish to poll. From there, each person is assigned a number, and these numbers are randomly selected out of a hat, or randomly generated by a computer. Simple random sampling can only be used when a complete and current listing of the population is available. (Therefore it cannot be used if
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This note was uploaded on 05/04/2010 for the course POS 330 taught by Professor Hunter during the Fall '09 term at ASU.

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POS 330 SQ 9-4 - Study Questions August 31- September 4...

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