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Confidence level Critical value 0.90 2' = 1.645 0.95 2' = 1.960 0.99 2* =2.576 Jump to level 1 A poll for a statewide election

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Confidence level Critical value 0.90 2' = 1.645 0.95 2' = 1.960 0.99 2* =2.576 Jump to level 1 A poll for a statewide election has a margin of error of 1.97 percentage points. How many voters should be sampled for a 99%% confidence interval? Round up to the nearest whole number Ex: 1234# voters Check O a

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