To understand thoroughly the meaning of reliability and validity. |
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To comprehend the relationship between sample size and confidence intervals. |
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To grasp the relationship between population variance and confidence intervals. |
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To recognize the indicators for a large sample versus a small sample size. |
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To understand the reasons for stratifying a sample and the procedures for doing so. |
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To appreciate the economy and understand the method for clustering a sample. |
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To anticipate the potential for sampling bias and control the main sources of bias. |