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Critical values for quick reference during this activity. Confidence levelCritical value0.90 z=1.645 0.95 z=1.960 0.99 z=2.576 270604.2007124.qx3zqy7 Jump to level 1 A poll reported 38%

Critical values for quick reference during this activity.

Confidence levelCritical value0.90

z=1.645

0.95

z=1.960

0.99

z=2.576

270604.2007124.qx3zqy7

Jump to level 1

A poll reported 38%

support for a statewide election with a margin of error of 4.41

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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