Does this result show a clear advantage for one party

Reference no: EM131085893

Samples from a Partitioned Population

An opinion poll is performed on an upcoming election. In our (artificial1y constructed) example the population is partitioned into three subpopulations, and from each subpopulation a preliminary sample of size 10 is drawn. Each element of the sample can have the values ° (vote for party A) or 1 (vote for party B). The samples are

(a) Use these samples to form an estimator for the result of the election and its variance s2. Does this result show a clear advantage for one party?

(b) Use these samples to determine for a much larger sample of size n the sizes ni of the subsamples in such a way that has the smallest variance (cf. Example 6.6).

Example 6.6

Optimal choice of the sample size for subpopulations

Reference no: EM131085893

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