Critical values for quick reference during this activity. Condence level Critical value 0.90 z* = 1.645 0.95 z\" : 1.960 0.99 z* = 2.576 Jump to level 1 A poll reported 70% support for a statewide election with a margin of erroroic 4.95 percentage points. How many voters should be sampled for a 95% condence interval? Round up to the nearest whole number