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 In a poll of 1000 randomly selected
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, 913 voters were against fire department bond measures.
What is the 99% confidence interval? [smaller value, larger value]
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Understanding Public Opinion Polls
Authors: Jelke Bethlehem
1st Edition
1498769756, 9781498769754
