STP 420 Third Exam
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Last updated 11:36 PM on 12/7/25
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11 Terms
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Type I Error
Reject Ho when it is true
Probability = α
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Type II Error
Fail to reject Ho when it’s false
Probability: β
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Increase the power of the test
Increase Sample size
Increase Significance level (alpha)
Decrease population standard deviation
Increase difference between hypothetical mean and true mean
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Z score confidence interval
𝑥̄±(𝑍×𝑠/√n)
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Z test
One population, one mean
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Non-pooled t
2 independent populations
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Paired t test
Two paired populations
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ANOVA
More than two populations
F table
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P < alpha
Reject Ho
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Non-pooled t test confidence interval
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Paired t test confidence interval
Note 
Flashcards (44)