In a nationwide survey conducted by a reputable research center, a sample of adults in a certain country were asked whether they favor a plan to break up a small collection of megabanks, which controlled about 70% of the banking industry; 45% of those sampled responded in the affirmative. According to the report, "the margin of sampling error is plus+/minus3 percentage points with a 99% level of confidence." Find and interpret a 99% confidence interval for the percentage of all adults in the country who favor a plan to break up the megabanks. 1. What is the 99 percent confidence interval from ? 2. Interpret the 99 percent confidence interval