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Proportions - Standard error and confidence interval

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Ms. Maria Wilson is considering running for mayor of the town of Bear Gulch, Montana. Before completing the petitions, she decides to conduct a survey of voters in Bear Gulch. A sample of 400 voters reveals that 300 would support her in the November election.

Estimate the value of the population proportion.

Compute the standard error of the proportion.

Develop a 99 percent confidence interval for the population proportion

https://brainmass.com/statistics/confidence-interval/proportions-standard-error-confidence-interval-83335

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99% Confidence limits for proportions=

Estimate the value of the population proportion.
p= 75.00% =300/400

Compute the standard error of the proportion.
q=1-p= 25.00%
n=sample size= 400
standard ...

Solution Summary

The solution estimates the value of the population proportion, computes the standard error of the proportion and develops a 99 percent confidence interval for the population proportion.

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