A hot topic in the news is the possible replacement of the Brent Spence Bridge w

Question

A hot topic in the news is the possible replacement of the Brent Spence Bridge which connects northern Kentucky to Cincinnati. If the bridge is replaced, it will likely become a toll bridge. A 2013 survey of 1597 northern Kentucky AAA members was asked their opinion on instituting a toll on the Brent Spence Bridge. Of those surveyed, 942 were opposed to tolls. With 90% confidence, we estimate between 56.98% and 61.02% of all northern Kentucky residents are opposed to tolls on the Brent Spence Bridge. Does the interval above provide evidence that more than 60% of northern Kentucky residents are opposed to tolls? Which is correct? A.Yes because the upper limit of the interval is greater than 60%. B.Yes because both limits of the interval are greater than 60%. C.No because both limits of the interval are below 60%. D.No because the upper limit of the interval is greater than 60% while the lower limit is less than 60%.

Explanation / Answer

Since the interval contains 60%, we can't conclude that more than 60% of northern Kentucky residents are opposed to tolls.

Option D is correct.

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