A Norwich University administrator is trying to determine the proportion of students who have been in the library building this semester. Determine if each of the following is an example of a simple random sample, stratified random sample, or convenience sample. a) He randomly selects 15 members from the corps of cadets and 10 civilian students. Answer b) He obtains a list a student ID numbers, and randomly draws 25 numbers from the list. Then he contacts these 25 people and asks them directly. Answer c) He stands behind a table at the Wise Campus center and asks the first 100 people who pass by if they have been in the library this semester. Answer
A Norwich University administrator is trying to determine the proportion of students who have been in the library building this semester. Determine if each of the following is an example of a simple random sample, stratified random sample, or convenience sample. a) He randomly selects 15 members from the corps of cadets and 10 civilian students. Answer b) He obtains a list a student ID numbers, and randomly draws 25 numbers from the list. Then he contacts these 25 people and asks them directly. Answer c) He stands behind a table at the Wise Campus center and asks the first 100 people who pass by if they have been in the library this semester. Answer
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A Norwich University administrator is trying to determine the proportion of students who have been in the library building this semester. Determine if each of the following is an example of a simple random sample, stratified random sample, or convenience sample.
a) He randomly selects 15 members from the corps of cadets and 10 civilian students. Answer
b) He obtains a list a student ID numbers, and randomly draws 25 numbers from the list. Then he contacts these 25 people and asks them directly. Answer
c) He stands behind a table at the Wise Campus center and asks the first 100 people who pass by if they have been in the library this semester. Answer
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