Question: onfidence intervals for population proportions EzyBooks catalog Help/FAQ CHALLENGE ACTIVITY 7.2.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence

onfidence intervals for population proportions EzyBooks catalog Help/FAQ CHALLENGE ACTIVITY 7.2.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence level Critical value 0.90 2* = 1.645 0.95 2* = 1.960 0.99 2* = 2.576 377136.2340164.qx3zqy7 v Jump to level 1 1 V A poll reported 43% support for a statewide election with a margin of error of 2 4.11 percentage points. 3 How many voters should be sampled for a 95% confidence interval? Round up to the nearest whole number. 4 EX: 1234 voters 2 3 4

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