Reading proficiency: An educator wants to construct a 98% confidence interval for the proportion of elementary school children in Colorado who are proficient in reading. Part: 0/ 3 Part 1 of 3 (a) The...

Extracted text: Reading proficiency: An educator wants to construct a 98% confidence interval for the proportion of elementary school children in Colorado who are proficient in reading. Part: 0/ 3 Part 1 of 3 (a) The results of a recent statewide test suggested that the proportion is 0.75. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.04? A sample of elementary school children is needed to obtain a 98% confidence interval with a margin of error of 0.04. NOV MacBook Air 吕0 DII DD F2 F3 F4 FS F6 F7 F8 F10 @ %23 $ % & 3 4 6