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Sampling & Critical Value

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Describe sampling and critical value.

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Solution Summary

A thorough explanation of why sampling is used instead of census for the calculation of the population statistics, and how estimates of ? can be found using the sample statistics.

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It is impossible for researchers to perform a census each time and therefore have accurate values for the test statistics for their population under study (expected values or proportions). In most cases therefore they collect samples (small subsections of their population under study) which have to be collected as randomly as possible so that these samples can be used to approximate as accurately as possible the population (according ...

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