Safari File Edit View History Bookmarks Window Help Q Sat Apr 17 19:35 Students B Grades - FIN-250-T4198 Personal Financial Planning 2.. zy Section 7.2 - MAT 240: Applied Statistics Course Hero = zyBooks My library > MAT 240: Applied Statistics home > 7.2: Confidence intervals for population proportions zyBooks catalog Help/FAQ Brendyn Gosselin Challenge activities CHALLENGE ACTIVITY 7.2.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence level Critical value 0.90 2* = 1.645 0.95 2* = 1.960 0.99 z* = 2.576 Jump to level 1 A poll reported 35% support for a statewide election with a margin of error of 3.89 percentage points. How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number. Ex: 1234 voters 2 3 4 Check Next Feedback? CHALLENGE