Chapter 7, Survey Sampling

Solution 29


(a)

Let denote the probability of answerting yes if Question 2 was asked. Similar to the problem-28, we have:

Thus we can estimate r, by (Note that and and constant for an experiment. Thus .

(b)

Thus . It follows that is unbiased in estimating .

(c)

$$\tag*{$\blacksquare$} $$