Suppose we use a simple random sample to set up the following confidence interval for an unknown population proportion p: p^±zcn√×p^(1−p^)−−−−−−−√n Each quantity below is either subject to chance or a fixed constant. Next to each quantity, write
1 if the quantity is subject to chance.
If it is a fixed constant, write 0.
the population proportion p
the estimate P
the size of the sample n
the z-score multiple zc