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Chapter 4

chap 4 textbook.docx

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BIOL 2060
Joel Shore

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Estimating with uncertainty  Mean=mew  SD=sigma 4.1 the sampling distribution of an estimate  Estimation: process of inferring a population parameter from sample data  Sampling distribution: probability distribution of all the values for an estimate that we might have obtained when we sampled the population  Parameter: mean and SD  Sample frequency data is skewed to the right and it resembles the population.  Sampling distribution: probability distribution of values for an estimate that we might obtain when we sample a population  Larger the sampling distribution the more precise the estimate will be  Increasing the sample size reduces the spread of the sampling distribution of an estimate, increasing precision 4.2 measuring the uncertainty of an estimate  Standard error=SD of the sampling distribution , reflects the
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