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STAT110

Lecture #5 - 9/6

QuestionAnswer
number that describes the population; fixed number parameter
number that describes the sample statistic
sample size / total sample p̂ (population proportion)
consistently off in one direction or the other; can use random sample to reduce bias
how spread out the values of the sample statistic are; amount of scattering variablity
"plus or minus 3 percentage points"; using sample proportion from SRS of size n to estimate unknown population parameter margin of error: 1/√n
the percent of all possible samples that satisfy the MOE; applies to population not the sample confidence statement
Created by: ConnorLomis
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