Chapter 8 SamplingDists2

Chapter 8 SamplingDists2 - Chapter 8 Part I Sampling...

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Chapter 8 1 Chapter 8 Part I Sampling Distributions and Estimation
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Chapter 8 2 Sampling Variability Sample statistics will vary from sample to sample. Population parameters remain fixed as long as the population remains the same. Process parameters remain fixed as long as the process remains the same. Sometimes we know a parameter value and sometimes we don’t.
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Chapter 8 3 The value of a statistic can change whenever we take a new random sample. Sampling variability exists in every sampling process. However: sampling variability can follow a predictable pattern provided we take random samples.
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Chapter 8 4 Sampling Distribution When we use a sample statistic to make conclusions about a population parameter, we are interested in the sampling distribution of the statistic.
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5 The sampling distribution is the pattern that we would see if we looked at all possible statistic values from all samples of the same size. We look for
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This note was uploaded on 10/08/2009 for the course BCOR 2200 taught by Professor Tomnelson during the Spring '08 term at Colorado.

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Chapter 8 SamplingDists2 - Chapter 8 Part I Sampling...

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