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To answer the question, "Does a frog have lips and a stubby tail?"most people
Test Statistic
A calculated value from sample data that is used in a hypothesis test to decide whether to reject the null hypothesis.
Level of Significance
A criterion for judging the strength of evidence provided by the data against the null hypothesis, often denoted by alpha.
Significance Level
The probability of rejecting the null hypothesis in a statistical test when it is actually true, used to assess the evidence against the null hypothesis.
Type I Error
The error that occurs in hypothesis testing when a true null hypothesis is incorrectly rejected, often referred to as a "false positive."
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