Examlex
True or False: Apple Computer, Inc.collected information on the age of their customers.
Suppose the youngest customer was 12 and the oldest was 72.To study the distribution of the
age among its customers, it can use a percentage polygon.
Sample Size
The number of observations or subjects included in a study.
Effect Size
A quantitative measure of the magnitude of a phenomenon, used to indicate the size of an effect or difference found in a study.
Type I Error
The incorrect rejection of a true null hypothesis, or a "false positive," in hypothesis testing, indicating that the test suggests an effect that does not actually exist.
Type II Error
A statistical term referring to the error that occurs when a false null hypothesis is not rejected, indicating a false negative finding.
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