CMN 2101 Lecture Notes - Lecture 9: Convenience Sampling, Nonprobability Sampling, Vise

• School: University of Ottawa
• Department: Communication
• Course: CMN 2101
• Professor: Mohammed El Hashash

Document Summary

Sampling review: everyday sampling: gathering friends" opinions. What did you think of that cmn course? (small and bias sample) No now i know liked that movie. Most trump supporters are racist: but wait! When conducting research, we decide whom and what to study: 2 basic methods in selecting sample from the population: 2. non-probability sampling (aka non-random sampling, what your goals are? a speci c demographic) Probability sampling: most preferred by researchers, ensures that each member of the population has an equal chance of being selected, deductive mathematical approach, recall the general rule of thumb. The smaller the population size(ps), the bigger the sample size (ss) and vise. 2016 3 31 versa: for a population of below 500, a sample size of 30% is required, for sample size over 150000 a sample size of 1% is needed, for 10 million a sample size of 0. 025% is needed.