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The concepts of statistical inference, specifically confidence intervals and tests of significance. Statistical inference provides methods for drawing conclusions about a population based on sample data. Two types of inference are discussed: confidence intervals, which estimate a population parameter and indicate the reliability of an estimate, and tests of significance, which assess the evidence for or against a claim about a population. The document also covers the conditions for inferencing about a mean, including having a simple random sample from the population of interest, the variable measured having a normal distribution, and the population mean being unknown but the population standard deviation being known.
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