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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

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.

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