A city manager wants to poll residents about a park renovation. Which of the following best describes a random sample of residents? The city manager uses a computer program to draw 56 residents at random and selects these residents. Every set of 56 residents is equally likely to be drawn by the computer program. The city manager forms 7 groups of residents based on the residents' incomes. Then, she selects 8 residents at random from each group. The first 56 residents who walk into city hall one day are easily accessible. So, the city manager selects these residents. (b) A host on a cruise ship wants to collect data on the time passengers spend at various activities on board. Which of the following best describes a cluster sample of passengers? 0.0 The host forms groups of 8 passengers based on the passengers ages. Then, he randomly chooses 8 groups and selects all of the passengers in these groups. 00 The host takes a list of the passengers and selects every 4th passenger until 64 passengers are selected. The host assigns each passenger a different number. Using a random number table, he draws 64 of those numbers at random. Then, he selects the passengers assigned to the drawn numbers. Every set of 64 passengers is equally likely to be drawn using the random number table. (c) A chemist at a pharmaceutical company wants to test the quality of a new batch of microscopes. Which of the following best describes a stratified sample of microscopes? The chemist takes a list of the microscopes and selects every 5th microscope until 50 microscopes are selected. The chemist forms groups of 10 microscopes based on the laboratories that the microscopes are in. Then, he randomly chooses 5 groups and selects all of the microscopes in these groups. The chemist forms 2 groups of microscopes based on the prices of the microscopes. Then, he selects 25 microscopes at random from each group. Continue Q Search સાદ પા L IA W X Submit Assignment © 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility = C @