Cob 191 jmu - Study guides, Class notes & Summaries

Simple Random (sampling type) - Answer- Every member of the population has an equal chance of being selected -it's simple and it's random. Systematic (sampling type) - Answer- Every kth member of the population is selected for the sample. It's easy to do manually, but there can be periodicity which allows for bias. Stratified (sampling type) - Answer- Divide the population into mutually exclusivegroups based on one variable (strata). Next, randomly and proportionally select from those s...

COB 191 JMU Final Test Questions with Answers Simple Random (sampling type) - Answer-Every member of the population has an equal chance of being selected -it's simple and it's random. Systematic (sampling type) - Answer-Every kth member of the population is selected for the sample. It's easy to do manually, but there can be periodicity which allows for bias. Stratified (sampling type) - Answer-Divide the population into mutually exclusivegroups based on one variable (strata). Next, ra...

COB 191 JMU Final Test Questions with Answers Simple Random (sampling type) - Answer-Every member of the population has an equal chance of being selected -it's simple and it's random. Systematic (sampling type) - Answer-Every kth member of the population is selected for the sample. It's easy to do manually, but there can be periodicity which allows for bias. Stratified (sampling type) - Answer-Divide the population into mutually exclusivegroups based on one variable (strata). Next, ran...

COB 191 Exam 1 (2023/2024) Already Graded A data values assigned to measurements primary data adv: collected and orgainzed by user dis: expensive and time consuming secondary data adv: readily available dis: no control over organization and accuracy nominal data -arbitrary labels -no ranking -name/label ordinal data -ranking exists -no measurable meaning to numerical differences -order/choices interval data -meaningful differences -no true value of zero -gives orders of values AND ability t...