Question 925519
A car dealership is interested in finding out how many people are considering buying a new car. How many people 
must be surveyed so they can be 99% confident that the sample proportion is within three percentage points of the 
true proportion? 
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n = [z/E]^2*pq
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n = [2.5758/0.03]^2*(1/2)(1/2)
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n = 1843 when rounded up.
Cheers,
Stan H.