The sampling examples below use either the stratified or the cluster method of sampling Select the examples that use the stratified method. A potato field is believed to be infected with a plant disease. The field is divided into 10 equal areas, and 25 potatoes are selected from each area to be tested for the disease. A city council wants to know if elementary students in its city are meeting national standards. Eight schools are selected from the city's 30 total elementary schools, and the test scores of all students in the selected schools are evaluated. A health agency needs to assess the performance of hospitals in a region but does not have the resources to evaluate each hospital. To reduce costs, the agency selects 5 of the 23 hospitals in the region and samples data related to performance from randomly chosen days and times. A landlord wants to know the average income of his tenants. He selects three of his eight apartment complexes and collects income information from several randomly chosen tenants within the selected complexes A questionnaire is created to gauge student opinion on a new university cafeteria. A sample of 40 freshmen, 50 sophomores, 60 juniors, and 50 seniors is selected to fill out the questionnaire.
The sampling examples below use either the stratified or the cluster method of sampling Select the examples that use the stratified method. A potato field is believed to be infected with a plant disease. The field is divided into 10 equal areas, and 25 potatoes are selected from each area to be tested for the disease. A city council wants to know if elementary students in its city are meeting national standards. Eight schools are selected from the city's 30 total elementary schools, and the test scores of all students in the selected schools are evaluated. A health agency needs to assess the performance of hospitals in a region but does not have the resources to evaluate each hospital. To reduce costs, the agency selects 5 of the 23 hospitals in the region and samples data related to performance from randomly chosen days and times. A landlord wants to know the average income of his tenants. He selects three of his eight apartment complexes and collects income information from several randomly chosen tenants within the selected complexes A questionnaire is created to gauge student opinion on a new university cafeteria. A sample of 40 freshmen, 50 sophomores, 60 juniors, and 50 seniors is selected to fill out the questionnaire.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The sampling examples below use either the stratified or the cluster method of sampling
Select the examples that use the stratified method.
A potato field is believed to be infected with a plant disease. The field is divided into 10 equal areas, and 25 potatoes are
selected from each area to be tested for the disease.
A city council wants to know if elementary students in its city are meeting national standards. Eight schools are selected
from the city's 30 total elementary schools, and the test scores of all students in the selected schools are evaluated.
A health agency needs to assess the performance of hospitals in a region but does not have the resources to evaluate each
hospital. To reduce costs, the agency selects 5 of the 23 hospitals in the region and samples data related to performance
from randomly chosen days and times.
A landlord wants to know the average income of his tenants. He selects three of his eight apartment complexes and
collects income information from several randomly chosen tenants within the selected complexes
A questionnaire is created to gauge student opinion on a new university cafeteria. A sample of 40 freshmen,
50 sophomores, 60 juniors, and 50 seniors is selected to fill out the questionnaire.
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