Critical values for quick reference during this activity. Confidence level | Critical value 0.90 2* = 1.645 0.95 2* = 1.960 0.99 * = 2.576 402928.2594236.qx3zqy7 Jump to level 1 In a poll of 1000 randomly selected voters in a local election, 228 voters were against school bond measures. What is the sample proportion p? EX: 0.123 # What is the margin of error m for the 95% confidence level? EX: 0.123