Critical values for quick reference during this activity. Confidence level | Critical value 0.90 2 = 1.645 0.95 *= 1.960 0.99 2* = 2.576 402928.2594236.qx3zqy7 Jump to level 1 A poll for a statewide election has a margin of error of 2.92 percentage points. How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number. Ex: 1234 voters