Chapter 7: Introduction to Sampling Distributions

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Presentation transcript:

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

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