Question: 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 662228.4142684.qx3zqy7 Jump to level 1 A poll

Critical values for quick reference during this activity.

Confidence levelCritical value
0.90z=1.645
0.95z=1.960
0.99z=2.576

662228.4142684.qx3zqy7

Jump to level 1

A poll reported 59% support for a statewide election with a margin of error of 3.04 percentage points.

voters

How many voters should be sampled for a 95% confidence interval? Round up to a whole number.

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