chapter 1 Flashcards
population
everything
sample
part of a population
parameter is for ______
population
statistic is for ______
sample
quantitative
numbers
qualitative
qualities
nominal
- categories
- can’t do math with it
Ordinal
names/categories in order
interval
number scale where interval values are equal; no absolute zero
ratio
combines all the previous groups but has an absolute zero
No Oil In Rivers
Nominal, Ordinal, Interval, Ratio
Completely randomized/ simple random
random
randomized block
random in groups
matched pairs
compare two treatments
convenience
whatever people are easier for the research to use
voluntary
those who volunteer for the experiment
stratified (block)
divide by criteria then pick random
systematic
every ___ number is picked
cluster
random groups are picked