A random sample survey of 865 voters in a local town reveals that 408 favor approval of an increase in the sales tax. What is the point estimate for the population proportion of approval? Construct the 95% confidence interval for the true proportion of all voters in the state who favor approval. Provide an interpretation of the confidence interval in 1 – 2 complete sentences.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A random sample survey of 865 voters in a local town reveals that 408 favor approval of an increase in the sales tax.

  1. What is the point estimate for the population proportion of approval?
  2. Construct the 95% confidence interval for the true proportion of all voters in the state who favor approval.
  3. Provide an interpretation of the confidence interval in 1 – 2 complete sentences.
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