_ Homework: Ch9 HW One Sample Confidence Intervals Question 1' 9'1'35 Part 1 off.' (a) she U585 a previous estimate of 0.46? A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What slze sample should be obtained if she wishestne estimate to he Wlthin 0.03 with 99% condence if (b) she does not use any prlor estlrnates? 3 Click the icon to View the table of critical values. (a) n = (Round up to the nearest integer.)