In a poll of 1000 randomly selected voters in a local election, 288 voters were in favor of fire department bond measures. What is the 95% confidence interval? [ Ex: 0.123 , Ex: 0.123 ] [smaller value, larger value]
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![Critical values for quick reference during this activity.
Confidence level Critical value
0.90
z* = 1.645
0.95
1.960
0.99
z* = 2.576
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In a poll of 1000 randomly selected voters in a local election, 288 voters were
in favor of fire department bond measures.
What is the 95% confidence interval? [Ex: 0.123 , Ex: 0.123 ]
[smaller value, larger value]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd38182f4-038d-4a39-9ba0-300bab26f72a%2F08479912-7880-442c-8087-4e5c1491b527%2Fggxx83h_processed.png&w=3840&q=75)
Given data,
n=1000
x=288
z-value at 95% confidence is Zc=1.96
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