The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people. The sample mean is 8.2 minutes. There is a known standard deviation of 2.2 minutes. The population distribution is assumed to be normal. Suppose the Census needed to be 98% confident of the population mean length of time. Would the Census have to survey more people? Why or why not? The Census would not have to survey more people if they were to decrease the error bound and make the confidence interval narrower. If they wish to keep the same error bound, then they would have to survey less people. The Census would have to survey more people if they were to decrease the error bound and make the confidence interval narrower. If they wish to keep the same error bound, then they would have to survey less people. The Census would not have to survey more people if they wish to keep the same error bound. The Census would have to survey more people if they were to increase the error bound and make the confidence interval wider. If they wish to keep the same error bound, then they would have to survey more people. The Census would not have to survey more people if they were to increase the error bound and make the confidence interval wider. If they wish to keep the same error bound, then they would have to survey more people