'Confidence intervals' diaporamas de présentation

Chapter 2 Simple Linear Regression

Chapter 2 Simple Linear Regression. Ray-Bing Chen Institute of Statistics National University of Kaohsiung. 2.1 Simple Linear Regression Model. y = ? 0 + ? 1 x + ? x: regressor variable y: response variable ? 0 : the intercept, unknown ? 1 : the slope, unknown

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Nonparametric tests II

Nonparametric tests II. as randomisation tests. Lecture Outline. Background: Nonparametric tests as randomisation tests The sign test The Wilcoxon signed ranks test The Mann-Whitney test General remarks on randomisation tests Brief Review of the course so far. after before 640.0 1050.0

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Nonparametric tests II

Nonparametric tests II. as randomisation tests. Lecture Outline. Background: Nonparametric tests as randomisation tests The sign test The Wilcoxon signed ranks test The Mann-Whitney test General remarks on randomisation tests Brief Review of the course so far. after before 640.0 1050.0

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CONFIDENCE INTERVALS

CONFIDENCE INTERVALS. DR.S.SHAFFI AHAMED ASST. PROFESSOR DEPT. OF F & CM. BACKGROUND AND NEED OF CI. ---Statistical analysis of medical studies is based on the key idea that, we make observations on a sample of subjects from which the sample is drawn.

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The standard error of the sample mean and confidence intervals

The standard error of the sample mean and confidence intervals. How far is the average sample mean from the population mean? In what interval around mu can we expect to find 95% or 99% or sample means. An introduction to random samples.

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Chapter 15

Chapter 15. Thinking about Inference. z Procedures. If we know the standard deviation s of the population, a confidence interval for the mean m is: To test a hypothesis H 0 : m = m 0 we use the one-sample z statistic:

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Calculating Statistical Significance and Margins of Error Using American Community Survey Data

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Approximation Techniques for Data Management Systems

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Confidence Intervals & Sample Size

Confidence Intervals & Sample Size. Chapter 7. Introduction. One aspect of inferential statistics is estimation, which is the process of estimating the value of a parameter from information obtained from a sample One important question exists:

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Inflation Report August 2012

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SafeFITS A Road Safety Decision-Making Tool

Submitted by Secretariat Informal document WP.29-175-31 17 5 th WP.29, 19 - 22 June 2018 Agenda item 8.2. SafeFITS A Road Safety Decision-Making Tool. UNECE World Forum for Harmonization of Vehicle Regulations (WP.29) Geneva, 20 June 2018. SafeFITS.

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Statistics (cont.)

Statistics (cont.). Psych 231: Research Methods in Psychology. Quiz 10 is due on Friday at midnight Class experiment final drafts due in labs this week Please remember to include your commented first draft. Announcements. Inferential statistics used to generalize back. Population.

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REVIEW Confidence Intervals for Means

REVIEW Confidence Intervals for Means. When to use z and When to use t. USE z Large n or sampling from a normal distribution ? is known. USE t Large n or sampling from a normal distribution ? is unknown. z and t distributions are used in confidence intervals.

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When Using DOPPS Slides

When Using DOPPS Slides. DOPPS Slide Use Guidelines. Correlates and Outcomes of Dementia among Dialysis Patients: the Dialysis Outcomes and Practice Patterns Study . Introduction . DOPPS Background . Methods (1). Methods (2).

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Confidence Intervals

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Inference on Proportions

Inference on Proportions. Assumptions:. SRS Normal distribution np > 10 & n(1-p) > 10 Population is at least 10n. Normal curve. Formula for Confidence interval:.

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BENEFITS OF CLOPIDOGREL IN PATIENTS UNDERGOING CORONARY STENTING SIGNIFICANTLY DEPEND ON LOADING DOSE: EVIDENCE FROM A S

BENEFITS OF CLOPIDOGREL IN PATIENTS UNDERGOING CORONARY STENTING SIGNIFICANTLY DEPEND ON LOADING DOSE: EVIDENCE FROM A SYSTEMATIC REVIEW AND META-REGRESSION. G. BIONDI-ZOCCAI 1 , C. MORETTI 1 , P. AGOSTONI 2 , M. VALGIMIGLI 3 , A. ABBATE 4 , D. ANGIOLILLO 5 ,

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Chapter 8 Confidence Intervals

Chapter 8 Confidence Intervals. 8.3 Confidence Intervals about a Population Proportion. EXAMPLE Computing a Point Estimate

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Diagnosis I

Diagnosis I. Dr. Brent E. Faught, Ph.D. Assistant Professor Faculty of Applied Health Sciences Brock University St.Catharines, ON, Canada. Guidelines for Diagnostic Literature. Is this test potentially relevant to my practice? Has the test been compared with a true gold standard?

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??? Estimation

??? Estimation. Methods of estimation (MOM, Least squares, MLE) Sample properties of estimators Confidence intervals. A. METHODS OF ESTIMATION. METHOD OF MOMENTS suppose x 1 , x 2 , ... are iid. Fix k a positive integer. Then are iid and by the weak law of large numbers

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