You are stuck in a long traffic jam of about 100 cars. While waiting, you talked a little to 7 drivers of the closest cars and realized that 5 of them seemed completely calm about the situation. Which method will be effective to use in order to estimate the proportion of calm people in the traffic jam and construct a confidence interval?
A) large-sample method
B) bootstrap method

Question

Quizplus · Accepted Answer

Since the sample size is relatively small (7), the bootstrap method would be more appropriate for estimating the proportion of calm people and constructing a confidence interval. With the large-sample method, the sample size should ideally be greater than 30. The bootstrap method involves resampling the available data to create many new samples, estimating the parameter of interest for each sample, and using the distribution of estimates to calculate a confidence interval.

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