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 In a poll of 1000 randomly selected voters in a local election, 798 voters were in favor of school bond measures. What is the 95% confidence interval
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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 |
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