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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 377158.2334820.qx3zqy7 Jump to level 1 A poll

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

377158.2334820.qx3zqy7

Jump to level 1

A poll for a statewide election has a margin of error of 3.29 percentage points. How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole number.

voters

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