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QUESTION
The Philadelphia Regional Transport Authority wishes to estimate the proportion of central city workers that use public transportation to get to work....
The Philadelphia Regional Transport Authority wishes to estimate the proportion of central city workers that use public transportation to get to work. A recent study reported that of 100 workers, 64 used public transportation.
(a) Estimate the value of the population proportion.
(b) Develop a 90% confidence interval for the population proportion.
(c) Interpret your interval.
