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Every time Beth buys a book at Chapters,she presents her Chapters card,and the sales associate enters her purchase in a database.When she has purchased five books at regular price,she is sent a coupon for a free book to be picked out on her next visit to the store.This is an example of a:
Null Hypothesis
A statement used in statistical testing which proposes that no significant difference or effect exists between certain characteristics of a population.
Type I Error
The error of rejecting a true null hypothesis, also known as a "false positive."
Null Hypothesis
An assertion or proposition in statistics that indicates no significant difference or effect, serving as the default assumption to test against.
Type II Error
The error that occurs when the null hypothesis is falsely accepted, failing to detect an effect or difference when one actually exists.
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