Home X 1.1 7-2 Challenge Acavities: Praport X zy Section 7,2 - MAT 240: Applies .com/zybook/MAT-240-J4382-OL-TRAD-UG.22EW4/chapter/7/section/2 Statistics home > 7.2: Confidence intervals for population proportions E CHALLENGE ACTIVITY 7.2.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence level Critical value 0.90 z* = 1.645 0.95 z* = 1.960 0.99 z* - 2.576 389788 2534628.qx3zay Jump to level 1 In a poll of 1000 randomly selected voters in a local election, 467 voters were against school bond measures. What is the 95% confidence interval? [ Ex: 0.123 #] Ex: 0.123 [smaller value, larger value] Check Next