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Statistics Unit 2

Unit 2

QuestionAnswer
Statistical Inference Purpose
A parameter is a numerical characteristic of a population.
The sample results provide only _________ of the values of the population characteristics estimates
Point Estimation estimate of some population parameter
sample meany y as the point estimator of the___________ population mean u
sample variance s*2 as the point estimator of the _____________ population variance q*2
sample proportion p as the point estimator of the ______________ population proportion п
Sampling Error expected value of a point estimator = population parameter, the point estimator is said to be UNBIASED. If they are not euqal ' sampling error
Created by: NikaKirillova
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