12. In the Parent-Teen cell phone survey conducted by Princeton Survey Research Associates International, 851 randomly selected 16- to 17-year-olds living in the United States were asked if they had ever used their cell phone to text while driving. Of the 851 teens in the sample, 300 indicated that they text while driving. a. Verify that the requirements for constructing a confidence interval are satisfied. b. Construct a 90% confidence interval for the proportion of 16- to 17-year-olds who text while driving. c. Interpret the interval