題組內容

PART C: PROBLEMS 
Please provide your solutions in detail. 
1. A political poll is taken to determine the fraction p of the population that would support a referendum requiring all citizens to be fluent in the language of probability and statistics.

(2) With p unknown and n the number of random people polled, let 6114ce6037d88.jpg be the fraction of the polled people who support the referendum. What is the smallest sample size n in order to have a 90% confidence that 6114ce698efa2.jpg is within 0.01 of the true value of p? Your answer to this problem should be an integer