'Observed sample' diaporamas de présentation

Statistical Modeling and Data Analysis Given a data set, first question a statistician ask is,

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Statistical Inference

Statistical Inference. Chapter 12/13. Statistical Inference. Given a sample of observations from a population, the statistical inference consists in estimating characteristics of the population. A characteristic may be guessed to: Be a number (point estimation) Lay within an interval.

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Observational Cosmology: 6. Galaxy Number Counts

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Chapter 9.3 (323) A Test of the Mean of a Normal Distribution: Population Variance Unknown

Chapter 9.3 (323) A Test of the Mean of a Normal Distribution: Population Variance Unknown. Given a random sample of n observations from a normal population with mean ?. Using the sample mean and standard deviation X and s we can use the following test with significance level ?,

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Hypothesis Testing Example

Hypothesis Testing Example. Test the claim that the true mean # of TV sets in US homes is equal to 3. (Assume ? = 0.8). 1-2. State the appropriate null and alternative hypotheses H 0 : ? = 3 H 1 : ? ? 3 (This is a two tailed test)

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The Likelihood Function - Introduction

The Likelihood Function - Introduction. Recall: a statistical model for some data is a set of distributions, one of which corresponds to the true unknown distribution that produced the data. The distribution f ? can be either a probability density function or a

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