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Find the margin of error and 95% confidence interval for the following surveys. Round all answers...

Find the margin of error and 95% confidence interval for the following surveys. Round all answers to 2 decimal places.

(a) A survey of 500 people finds that 60% plan to vote for Smith for governor.

Margin of Error (as a percentage): Correct
Confidence Interval: % to %

(b) A survey of 1500 people finds that 55% support stricter penalties for child abuse.

Margin of Error (as a percentage): Correct
Confidence Interval: % to %

Math   Statistics-And-Probability   
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