environmentalists want to estimate the percent of trees in a large forest that are infested with a certain beetle. the environmentalists will select a random sample of trees to inspect. which of the following is the most appropriate method for creating such an estimate? responses a two-sample z -interval for a population proportion a two-sample z -interval for a population proportion a one-sample z -interval for a sample proportion a one-sample z -interval for a sample proportion a one-sample z -interval for a population proportion a one-sample z -interval for a population proportion a two-sample z -interval for a difference between sample proportions a two-sample z -interval for a difference between sample proportions a two-sample z -interval for a difference between population proportions