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 0.01 with 95% confidence if (a) she uses a previous estimate of 0.36? (b) she does not use any prior estimates? X Click the icon to view the table of critical values. Table of critical values Level of Confidence. Area in Each Tail. Critical Value, 4: (a) n= (Round up to the nearest integer.) (1 - 0) . 100% 0 0 1.6-45 (b)n= (Round up to the nearest integer.) 0 02s 0.005 2 575 Print Done