Confidence interval for population proportion
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A random sample of 600 registered voters yields 360 in favor of the slow growth initiative.
a. Compute the 99% confidence interval for the percentage of registered voters who favor the slow growth initiative. Interpret this interval.
b. How many registered voters should be sampled in order to be 99% confident of being with 1% of the population percentage of registered voters who are in favor of the slow growth initiative.
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Solution Summary
The solution provides step by step method for the calculation of confidence interval for population proportion. Formula for the calculation and Interpretations of the results are also included.
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