A pollster took a random sample of 100 students from a large

Last updated: 7/26/2022

A pollster took a random sample of 100 students from a large university and computed a confidence interval to estimate the percentage of students who were planning to vote in the upcoming election. The pollster felt that the confidence interval was too wide to provide a precise estimate of the population parameter. What could the pollster have done to produce a narrower confidence interval that would produce a more precise estimate of the percentage of all university students who plan to vote in the upcoming election? A. Increase the sample size to 150. B. Increase the confidence level to 99%. C. Both a and b D. None of the above