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Chapter 7 : Introduction to Sampling Distributions. Section 1 : Sampling Distributions. population – entire set of elements or individuals sample – subset of population. ). (. ,. ,. parameter – numerical descriptive measure of a population
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Chapter 7: Introduction to Sampling Distributions Section 1: Sampling Distributions
population – entire set of elements or individuals sample – subset of population
) ( , , parameter – numerical descriptive measure of a population statistic – numerical descriptive measure of a sample ( ) , s, s
Binomial Distribution proportion or probability of success population – p sample – “p-hat”
Statistics are used to make the following inferences about their corresponding parameters: 1. to estimate the value of a population 2. to formulate a decision about the value of a population parameter
Sampling Distribution • probability distribution for a statistic • used to evaluate the reliability of inferences