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Chapter 9.1-9.3 by Mind Map: Chapter 9.1-9.3
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Chapter 9.1-9.3

Mind on Statistics, 3rd edition, Utts Heckard, Thomson Brooks Cole, 2007

Section 9.1


"A parameter is a numberical summary of a population. Its value is considered to be fixed and unchanging." (Utts, 2007)


"A statistic, or sample statistic, is a numerical summary of a sample.  its value may be different for different samples.  The term sample estimate or estimate is synonymous and reinforces the idea that a statistic often is used to estimate the corresponding population parameter." (Utts, 2007)

Statistical Inference

Statistical inference or statistical induction comprises the use of statistics and random sampling to make inferences concerning some unknown aspect of a population. It is distinguished from...

Section 9.3

Sampling distribution

Standard deviation of x

Standard deviation of p

Standard error

Section 9.2

Population Proportion

Population mean

Paired Difference

Population mean for paired differences

Independent samples

Difference in two population means