MLE OF OPINION SURVEY PARAMETER
In the opinion survey illustration used to open this chapter, out of 100 students surveyed by the opinion pollster, 75 indicated a preference for closed-book exams. If one considers the sampling of each student to constitute a Bernoulli trial in which the outcome, "preference for closed- book exams," is nominally considered a "success," and if the student population is such that the true fraction with a preference for closed- book exams is θc, ?nd the MLE of θc from the survey result.
PRECISION OF OPINION SURVEY RESULT
In Example 14.7, the MLE of p, the true proportion of college students with a preference for closed-book exams, was estimated as 0.75 from the opinion survey result of 100 students. How precise is this estimate?