Cob 191 final - Study guides, Class notes & Summaries

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...

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 final 2023 Exam Questions And Answers using information obtained from a sample to estimate a characteristic of a population is - ANSWER- inferential stats which of the following can be reduced by proper interviewer training? - ANSWERmeasurement error if you are unsure about one section of data, what type of statistical error can occur? - ANSWER- measurement error What type of data is: your professor's name - ANSWER- qualitative categorical data/nominal What type of data is: ...

COB 191 final 2023 Exam Questions And Answers using information obtained from a sample to estimate a characteristic of a population is - ANSWER- inferential stats which of the following can be reduced by proper interviewer training? - ANSWERmeasurement error if you are unsure about one section of data, what type of statistical error can occur? - ANSWER- measurement error What type of data is: your professor's name - ANSWER- qualitative categorical data/nominal What type of data is: how...

COB 191 final 2023 Exam Questions And Answers using information obtained from a sample to estimate a characteristic of a population is - ANSWER- inferential stats which of the following can be reduced by proper interviewer training? - ANSWERmeasurement error if you are unsure about one section of data, what type of statistical error can occur? - ANSWER- measurement error What type of data is: your professor's name - ANSWER- qualitative categorical data/nominal What type of data is: how...

COB 191 final 2023 Exam Questions And Answers