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Stat 344 Lecture 21, 22, Betas, P-values

# Stat 344 Lecture 21, 22, Betas, P-values - Risks and...

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1 β Risks and P-Values Lecture 21and 22 Topics Type II errors β risks P-Values Lecture 21 R eference: Montgomery Sections 9-4, 9-1 Excel WS Reviewed 11/21/2011 Stat 344 Lecture 22

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β Risks Go to file: Stat 344 Lecture 21 WS concerning the interaction of these interrelated factors: 1) α, the probability of a Type I error 2) β, the probability of a Type II error 3) H 0:μ = μ0, the null hypothesized population mean 4) H a: μ = μa, the alternative hypothesized population mean 5) n , the sample size Reviewed 11/21/2011 2 Stat 344 Lecture 22
Hypothesis and Test Procedures Lecture 22 Topics p-values defined and used. p-values for z and t statistics. β and its determination. Statistical vs. practical significance Lecture 22 Reference: Montgomery Sec 9.1 p-values. 3 Stat 344 Lecture 22 Reviewed 11/21/2011

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5 Steps of Hypothesis Testing 1) State the hypotheses, null and alternative. 2) State the α risk 3) Take a sample and calculate the observed or test statistic.
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Stat 344 Lecture 21, 22, Betas, P-values - Risks and...

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