What would happen to your 95% confidence intervals if the sample size had been 1,000 instead of 242 but still 52% of your sample stated they had talked on a cell phone while driving? Use the applet to confirm your answer.

Let’s use our 3S strategy to help us investigate how much evidence the sample data provide to support our conjecture that a majority of 16- to 17-year olds have talked on their cell phone while driving.