Statistics population example

    • [PDF File]Basic Statistics I - East Carolina University

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      Population and sample •We are much more interested in the population from which the sample was drawn. –Example: 30 GPAs as a representative sample drawn from the population of GPAs of the freshmen currently in attendance at a certain university or the population of freshmen attending colleges similar to a certain university. 5

    • [PDF File]Chapter 9 Distributions: Population, Sample and Sampling ...

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      124 Part 2 / Basic Tools of Research: Sampling, Measurement, Distributions, and Descriptive Statistics Sampling Distribution If we draw a number of samples from the same population, then compute sample statistics for statistics computed from a number of sample distributions.

    • [PDF File]Statistics, Individuals and Variables - Valencia College

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      Statistics, Individuals and Variables Statistics is the collecting, organizing and interpreting of information (data). Individuals are the objects described by a set of data. • Population is all individuals of interest. o Inferential Statistics : Assume, or infer, something about the population based on data.

    • [PDF File]Statistics - OpenTextBookStore

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      Statistics allowed prosecutors in the 1950’s and 60’s to demonstrate racial bias existed in jury panels. Statistics are all around you, sometimes used well, sometimes not. We must learn how to distinguish the two cases. Populations and samples Before we begin gathering and analyzing data we need to characterize the population we are studying.

    • [PDF File]Populations, parameters, samples, statistics

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      Mathematics 241 Populations, parameters, samples, statistics Populations and parameters Remember that a population can be a xed, nite collection of objects (a tangible population) or it can be an in nite, conceptual population. A parameter is a numerical characteristic of the population, usually one that can be computed from a particular

    • [PDF File]Samples and Populations - Department of Statistics

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      Samples and Populations Bret Hanlon and Bret Larget Department of Statistics University of Wisconsin|Madison September 8, 2011 Samples and Populations 1 / 21 Sex and Older Women Example Fertility declines in women as they age until ending at menopause. Younger women may become pregnant relatively easier than older pre-menopausal women.

    • [PDF File]I. POPULATIONS, VARIABLES, and DATA

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      I. POPULATIONS, VARIABLES, and DATA Populations and Samples: To a statistician, the population is the set or collection under investigation. Individual members of the population are not usually of interest.

    • [PDF File]In statistics, a hypothesis is a claim or statement about ...

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      In statistics, a hypothesis is a claim or statement about a property of a population. A hypothesis test (or test of significance) is a standard procedure for testing a claim about a property of a population.

    • [PDF File]Example - University of Wisconsin–Madison

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      The object of our interest is the population distribution or, in particular, certain numerical attributes of the population distribution (called parameters ). 0 10 20 30 40 50 60 m s Population distribution Examples: mean median SD proportion = 1 proportion > 40 geometric mean 95th percentile Parameters are usually assigned greek letters (like ...

    • [PDF File]Topic #4: Sample and Population - Cornell University

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      In statistics, a sample is a subset of a population. Typically, the population is very large, making a census or a complete enumeration of all the values in the population impractical or impossible. The sample represents a subset of manageable size. Samples are collected and statistics are calculated from the samples so that one can make

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