A survey of 430 business travelers found 155 used a travel agent to make arrangements (USA today, November 20,2003) Develop a descriptive statistic that can be used to estimate the percentage of all business travelers who use a travel agent to make travel arrangements. b.) The survey reported that the most frequent way business travelers make travel arrangements is using an online travel site. If 44% of business travelers surveyed made travel arrangements this way, how many of 430 business travelers used an online travel site?