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Statistics & Parameters: 9.1-9.3 by Mind Map: Statistics & Parameters:
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Statistics & Parameters: 9.1-9.3


Associated with Populations

Population Parameter

Fixed, unchanging value

Statistic (Sample Statistic)

Associated with Samples

Sample estimate


Statistical Inference

Confidence intervals

Hypothesis Testing (Significance testing)

Null value

Statistical significance

Big 5 Parameters

Categorical Variables

1 One population proportion (or probability), Population Proportion between 0 and 1

2 Difference in two population proportions, Relative Risk

Quantitative Variables

3 One Population Mean

4 Population mean of paired differences (dependent)

5 Difference in two population means (independent), Independent Samples

Sampling Distribution

Mean Value

Standard Deviation

Standard error