please help with the entirety of #3

2. 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 3% with 99% confidence. A 2018 estimate of 68% obtained from a Harris poll is used as a planning value. . 03 = x = adults who have high-speed internet access Z = 2.5 74 (2 /E) 2 x 0. 68 x (1 - 0. 108) P = 0. 48 2. 5761 . 03 7373. 08 x 0. 18 x 0. 32 1, 4 04. 38- 1405 Adduts ANSWER : 1605 1 3. Suppose in #2 that no previous studies existed and so no planning value for the true proportion of adults with high-speed Internet access was available. Page 233 of 286 ANSWER: 1844