SECTION 12.1: SAMPLING AND MISUSES OF STATISTICS For questions 1 - 10, identify the sampling technique used. Choose from simple random, stratified, systematic, cluster, and convenience 1. Every 20th car coming off an assembly line is checked for defects. 2. A restaurant is surveying its employees about their job satisfaction. A random sample of 10 wait staff, 5 cooks, and 2 supervisors are chosen for the survey. . A city is divided into city blocks. A random selection of 20 city blocks is chosen and every person living on the chosen blocks is surveyed about the city's infrastructure. 4. Twenty gym members are going to be chosen for a satisfaction survey. The names of all the members of the gym are placed into a bin, and twenty of the names are chosen by a blindfolded person. . In order to determine shopper satisfaction, every 10th person entering a grocery store is asked to take a survey. 6. 500 registered Democrats in Texas are going to be chosen for a poll about the presidential election. The names of all registered Democrats in Texas are placed into a numbered database and 500 of them are chosen using a random number generator. . Children in a large city are classified based on the neighborhood school they attend. A random sample of five schools is selected. All the children from each selected school are included in the sample. 8. The first 50 people entering a zoo are asked if they support an increase in taxes to support a zoo expansion. 9. Students a Portland State University are classified according to their major, then a random sample of 15 students from each major is selected. 10. A conservative talk show host asks his listeners to call in and take a poll on who will win the presidential election this year