CHALLENGE 7.2.1: Confidence intervals for population proportions. АCTIVITY Critical values for quick reference during this activity. Confidence level Critical value 0.90 z* = 1.645 0.95 z* = 1.960...

CHALLENGE<br>7.2.1: Confidence intervals for population proportions.<br>АCTIVITY<br>Critical values for quick reference during this activity.<br>Confidence level Critical value<br>0.90<br>z* = 1.645<br>0.95<br>z* = 1.960<br>0.99<br>z* = 2.576<br>Jump to level 1<br>1<br>A poll reported 65% support for a statewide election with a margin of error of<br>3.97 percentage points.<br>How many voters should be sampled for a 95% confidence interval? Round up<br>to the nearest whole number.<br>Ex: 1234<br>voters<br>

Extracted text: CHALLENGE 7.2.1: Confidence intervals for population proportions. АCTIVITY 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 Jump to level 1 1 A poll reported 65% support for a statewide election with a margin of error of 3.97 percentage points. How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number. Ex: 1234 voters

Jun 06, 2022

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CHALLENGE 7.2.1: Confidence intervals for population proportions. АCTIVITY Critical values for quick reference during this activity. Confidence level Critical value 0.90 z* = 1.645 0.95 z* = 1.960...

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