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• ## Discussion

 0 answersPost by Anish Srinivasan on October 12 at 07:00:26 PMFor a systematic sample, could you just pick 5 people from each strata or do you have to use random number table/ random number generator? 1 answerLast reply by: Derui WangFri Mar 31, 2017 3:49 AMPost by Xiang Dong on March 28 at 11:15:23 PMIn example2 random sampling, when choosing 3 person from(0,500), why can't be 2digit number like 72,82,95...? Why you only chose the 3 digit number like 728,295... There is the same problem when choosing from (0,99), why can't be 1 digit number?

### Planning & Conducting Surveys

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

• Intro 0:00
• Objectives 0:09
• Census vs. Survey, Parameter vs. Statistics 0:28
• Census vs. Survey, Parameter vs. Statistics
• Characteristics of a Well-Designed and Well-Conducted Survey 2:15
• Representative Sample
• Random Sample
• Does Not Introduce Bias
• Bias 4:16
• What Is It?
• How Might It Occur?
• Example I: Identify the Type of Bias 7:03
• Random Sampling 10:25
• Simple Random Sample (SRS)
• Example II: Random Sampling 13:26
• Random Sampling, Cont. 16:44
• Stratified Random Sampling
• Cluster Sample
• Systematic Random Sample
• Example III: Random Sampling 20:52
• Non-Random Sampling 22:28
• Convenience Sample
• Voluntary Response Sample
• Example IV: Sampling Design 25:01
• Specify The Population
• Describe The Sampling Design. Will You Use a Stratified Sample?