PSYB07H3 Lecture Notes - Lecture 2: Statistical Inference, Barbecue, Descriptive Statistics
Document Summary
Order of operations (bedmas) [left to right] Entire collection of event in which you"re interested. Example: population= psyb07 class, sample= psyb07 tutorials. Case: i"m in a car with 3 of my friends, and we"re trying to decide where to go for dinner. A poll is conducted between tim, jess, sijing, Population=tim, jess, sijing, dwayne sample= tim, jess, sijing, Population: all the people in the bus, sample: tim, jess, sijing, dwayne. Can be calculated for a population or a sample. Inferential statistics (make conclusions about population from samples) External validity (the degree to which sample reflects population) Random sampling (every member in population has equal chance of being selected) No, the population is too large, all are university students, all are around the same age, etc. There must be more specific parameters to investigate: Look at males, hours per week same with females. The degree to which an experiment measures what it is.
