'Confidence interval example' presentation slideshows

Statistics 303

Statistics 303. Chapter 6 Inference for a Mean. Confidence Intervals. In statistics, when we cannot get information from the entire population, we take a sample. However, as we have seen before statistics calculated from samples vary from sample to sample.

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Statistics 303

Statistics 303. Chapter 7 Inference for Means. Inference for Means. To this point, when examining the mean of a population we have always assumed that the population standard deviation ( s ) was known. In practice this is seldom the case.

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