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Definition
as a means of testing a hypothesis 


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Definition
never studied or tested
group that provides data 


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characteristics of the population
not generally calculated 


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Definition


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used to test inferential statistics 


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Definition
Using #'s from sample to make informed guesses about the population parameters
Statistics/Informed guesses ALWAYS have ERROR



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Definition
naming the data
numbers have no meaning



Term
Ordinal/Rank Ordered Data


Definition
numbers matter
measuring more or less
no equal intervals
cannot be averaged 


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Definition
able to average
follow equal intervals



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Definition
meaningful zero point
Ex. I ate two donuts and you ate 1 so I ate 2x as many donuts as you 


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Placing people into one of two categories
two options means equal interval
Ex. gender male or female 


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numbers can only be whole numbers no decimals
finite number of possibilities 


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Definition
Decimals are allowed
time
Ex. I came to class late so I was in class for .98 minutes of class 


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everyone has a chance of being selected
sample must represent population or else curve will be skewed
Ex. can't count landlines bc lots of ppl have only cell phones 

