1. According to a recent study of 7335 young people in the US, 30% had been arrested for a crime other than a traffic violation by the age of 23. (Crimes included such things as vandalism, underage drinking, drunken driving, shoplifting and drug possession). (a) Is the 30% a parameter or a statistic? Which symbol is used? (b) Describe the parameter being estimated, and use the correct symbol. (c) The margin of error from this study is 0.01. Use this information to give a 95% confidence interval for the parameter. (d) Interpret your confidence interval from part c