MATH 225N Week 1 Assignment

MATH 225N Week 1 Assignment Comparing Sampling Methods Questions and Answers 1. A television station plans to send a crew to a polling center on an election day. Because they do not have time to interview each individual voter, they decide to count voters leaving the polling location and ask every 20th voter for an interview. What type of sampling is this? ________________________________________ Select the correct answer below: ________________________________________ Simple random sampling Cluster sampling Stratified Sampling Systematic sampling Convenience sampling 2. In order to study the shoe sizes of people in his town, Billy samples the population by dividing the residents by age and randomly selecting a proportionate number of residents from each age group. Which type of sampling is used? ________________________________________ Select the correct answer below: ________________________________________ Systematic sampling Stratified sampling Convenience sampling Cluster sampling 3. The management of a large airline wants to estimate the average time after takeoff taken before the crew begins serving snacks and beverages on their flights. Assuming that management has easy access to all of the information that would be required to select flights by each proposed method, which of the following would be reasonable methods of stratified