population proportion of voters in favour of a particular political candidate was estimated based on a representative sample of 155 voters. 71 voters expressed their support of the candidate from 155

Define the point estimator for the population proportion and compute the estimate based on the sampling data.

What is the sampling distribution of the point estimator of Q1? State and verify any required conditions.

Suggest what could be done when a more accurate interval estimator is preferred. How about if a more precise interval estimator is intended? Justify your answer.