Laboratory for Interdisciplinary Statistical Analysis - LISA - Virginia ...

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Laboratory for Interdisciplinary StatisticalAnalysis1948: The Statistical Laboratory was founded as a division of theVirginia Agricultural Experiment Station to help agronomistsdesign experiments and calculate sums of squares.www.lisa.stat.vt.edu
Laboratory for Interdisciplinary StatisticalAnalysis1949: Based on the success of the Statistical Laboratory, theDepartment of Statistics at Virginia Polytechnic Institute (VPI)was founded—the 3rd oldest statistics department in the UnitedStates.www.lisa.stat.vt.edu
Page 1: Laboratory for InterdisciplinarySta
Page 5 and 6: Laboratory for Interdisciplinary St
Page 11 and 12: LISA helps VT researchers benefitfr
Page 13 and 14: LISA helps VT researchers benefitfr
Page 15 and 16: How can LISA help?• Formulate res
Page 19 and 20: Introduction to R• R is a free so
Page 23 and 24: Anne Ryan23
Page 25 and 26: Burden of Proof—Obligation to shi
Page 27 and 28: Hypothesis Test: Procedure for exam
Page 29 and 30: State the name of the testing metho
Page 31 and 32: State the hypothesis of interest Th
Page 33 and 34: 1. Left Tailed Hypothesis Test:•
Page 35 and 36: Three Requirements for Stating Hypo
Page 37 and 38: Significance Level: Here we choose
Page 39 and 40: Test Statistic: Compute the test st
Page 41 and 42: Conclusion: Last step of the hypoth
Page 44 and 45: Used to test whether the population
Page 46 and 47: The sample is random. The populatio
Page 48 and 49: A researcher would like to know whe
Page 50: Step 5 Conclusion: Fail to reject
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The population means of the two gro
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Step 3: Calculate the test statisti
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Steps 2-4:JMP Demonstration:Analyze
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The paired t-test is used to compar
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The sample is random. The data is m
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A researcher would like to determin
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Step 5 Conclusion: There is not evi
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The first step is to use the ANOVA
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Step 1: We test whether there is ad
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CA B C A BMedical TreatmentCompare
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The mean square for groups, MSG, me
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Step 4: Calculate the p-value. Step
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JMP demonstrationAnalyze Fit Y By
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The p-value of the overall F test i
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LevelDrug CDrug CDrug B- LevelDrug
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No InteractionInteractionImprovemen
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We would like to determine the effe
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The one sample t-test allows us to
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Fisher’s Irises Data (used in one
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