3. Registered voters were surveyed about an upcoming bond issue. 163 surveyed voters favored the bond issue and 310 surveyed voters opposed the bond issue. a. What is the point estimate of p (those that favored the issue)? Construct a 95% confidence interval for p and interpret the meaning of the confidence interval. b. Suppose we want to reduce the margin of error by 25% with 99% confidence, what size n would be needed?
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Calculate the point estimate of p (those that favored the issue). The point estimate of p is the proportion of surveyed voters who favored the bond issue. To calculate this, we divide the number of voters who favored the issue by the total number of surveyed Show more…
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