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What is an analytical weight?
Analytical weights: An analytical weight (sometimes called an inverse variance weight or a regression weight) specifies that the i _th observation comes from a sub-population with variance σ 2 / wi, where σ 2 is a common variance and wi is the weight of the i _th observation.How do you use weights in a meta-analysis?
You can also use weights to analyze a set of means, such as you might encounter in meta-analysis or an analysis of means. The weight that you specify for the i _th mean should be inversely proportional to the variance of the i _th sample.What is the difference between a weighted and unweighted analysis?
Observations that have relatively large weights have more influence in the analysis than observations that have smaller weights. An unweighted analysis is the same as a weighted analysis in which all weights are 1. There are several kinds of weight variables in statistics.Is a dry weight analysis possible?
If a solution of highly pure enzyme is available, a dry-weight analysis may be possible. Though this should provide an exact value for the enzyme protein content, a great expense in labor and materials has to be devoted to the enzyme purification. Determination of the dry weight of a protein is important for investigations of protein structure.- Terms & Agreement
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