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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 reported 34% support

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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 reported 34% support for a statewide election with a margin of error of 3.07 percentage points How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number. Ex: 1234 + voters

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