Ratio Estimations

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The document entails ratio estimations, properties of estimates, Estimation of variants of Estimates and basic questions mainly asked on this topic. The ratio estimator is a statistical parameter and ... is defined to be the ratio of means of two random variables. Ratio estimates are biased and corrections must be made when they are used in experimental or survey work. It compares the sample estimate of the variable with the population total. The ratio of the sample estimate to its population total is used to adjust the sample estimate for the variable of interest. The ratio estimator involves the ratio of two variates. Imagine there are two characteristics (say x and y) we can observe for each sampled element and we have in addition information about the total of x, then the total of y can be estimated by multiplying the known total of x by a ratio of both variables. [Show More]

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