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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 In a poll of 1000 randomly selected voters in a local

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, 420 voters were against fire department bond measures.

What is the 90% confidence interval [smaller value, larger value]?

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