1or quick reference during this activity. Confidence level Critical value 0.90 z* = 1.645 0.95 1.960 %3D 0.99 z* = 2.576 %3D 7308 2364912.qx3zqy7 Jump to level 1 A poll for a statewide election has a margin of error of 2.15 percentage points. How many voters should be sampled for a 99% confidence interval? Round u to the nearest whole number. EX: 1234 voters

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quick reference during this activity.
Confidence level Critical value
0.90
z* = 1.645
0.95
* = 1.960
0.99
*
=D2.576
Jump to level 1
A poll for a statewide election has a margin of error of 2.15 percentage points.
How many voters should be sampled for a 99% confidence interval? Round u
to the nearest whole number.
EX
1234voters
Transcribed Image Text:quick reference during this activity. Confidence level Critical value 0.90 z* = 1.645 0.95 * = 1.960 0.99 * =D2.576 Jump to level 1 A poll for a statewide election has a margin of error of 2.15 percentage points. How many voters should be sampled for a 99% confidence interval? Round u to the nearest whole number. EX 1234voters
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