In a survey of 400 people, 60 percent favor new zoning laws. Find a 95 percent confidence interval for the true proportion favoring new laws.
Added by Scott P.
Step 1
First, we need to find the sample proportion, which is the number of people who favor new zoning laws divided by the total number of people surveyed. In this case, it's 60% of 400 people, so: Sample proportion (p̂) = (0.60)(400) / 400 = 0.60 Show more…
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