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An environmentalist in Lexington thinks gameday traffic for home football and basketball games at UK may increase local air pollution levels by a harmful amount. She constructs a 95 percent confidence interval using a sample of pollution levels in parts per million (pom) during 20 home game days with a population standard deviation of 3.5 ppm. Suppose the seasons get extended and 10 extra home games are added to the schedule, for a total of 30 home games. If the standard deviation remains the same, the 95 percent confidence Interval would be O Wider O Narrower O The same width O Not enough information to tell