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hi Im Kelly McConville a survey statistician and professor welcome to my course on analyzing survey data now Im wondering if youve ever found yourself in the following situation you have a question you want to answer you found a great dataset to answer that question then theres this column in the dataset that represents survey weights and you ask yourself what are those can I ignore those well lets pretend we have found ourselves in this situation we want to estimate the average household income in the US we find that the Bureau of Labor Statistics provides a public use data set and this data set includes the variable think be taxed given in the second column here which is the amount of household income before taxes in 2016 but the first column in the dataset is a survey weight variable final weight 21 how should these weights impact our analyses first we should ask what our survey weights survey ways result from data that were collected under a complex sampling design the weight