An Airport Bus Driver Conducted a Study to See What

Short Answer

An airport bus driver conducted a study to see what proportion of customers use the shuttle bus to get to and from the parking lot. The results of his study are listed below, where B = customer used the bus and W = customer walked. Construct a 95% confidence interval for p, the true proportion of all people who used the bus.
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Construct a 90% confidence interval for p, the true proportion of all people who used the bus.
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