E Quiz: Ch 9 Quiz: One Sample Confidence Intervals Question 8 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.05 with 90% confidence if (a) she uses a previous estimate of 0.36? (b) she does not use any prior estimates? Click the icon to view the table of critical values (a) n= |(Round up to the nearest integer.) (b) n= (Round up to the nearest integer.) Statcrunch Remember why you started C