Vacation Plans. A recent poll of 1660 adults taken by a national travel industry analysis organization reported that 35% said they are planning to take more vacation time in the coming year than this year. 1. What is the best estimate of the true population proportion of adults who are planning to take more vacation time in the coming year than this year? 2. Calculate the margin of error for a 99% confidence interval for the true proportion of this population. 3. State the confidence interval in both informal and formal fashion. 4. Calculate a 95% confidence interval based on the original conditions. Is the resulting confidence interval larger or smaller than the original? By how much