Critical values for quick reference during this activity. Confidence level Critical value z* = 1.645 0.90 0.95 0.99 481728.3343980.qx3zqy7 z* = 1.960 z* = 2.576 Jump to level 1 A poll reported 68% support for a statewide election with a margin of error of 2.92 percentage points. How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole number. Fx: 1234 voters

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