'Dependent samples' diaporamas de présentation

Chapter 10: Comparing Two Groups

Chapter 10: Comparing Two Groups. Section 10.1: Categorical Response: How Can We Compare Two Proportions?. Learning Objectives. Bivariate Analyses Independent Samples and Dependent Samples Categorical Response Variable Example Standard Error for Comparing Two Proportions

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Analysis of gene expression data (Nominal explanatory variables)

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Hypothesis Testing with Two Samples

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Dr. Ka-fu Wong

Dr. Ka-fu Wong. ECON1003 Analysis of Economic Data. Overview. Control Group. Experimental Group. Placebo. Treatment.

961 views • 42 slides

t -test

t -test. Dr. Hamza Aduraidi. Set alpha (p level). State hypotheses, Null and Alternative. Calculate the test statistic (sample value). Find the critical value of the statistic. State the decision rule. State the conclusion. Review 6 Steps for Significance Testing. t -test.

793 views • 40 slides

Statistics (1) Fall 2009

555 views • 40 slides

Chapter 25 Paired Samples and Blocks

Chapter 25 Paired Samples and Blocks. Independent vs. Dependent Samples.

488 views • 34 slides

t -test

t -test. Testing Inferences about Population Means. Learning Objectives. Compute by hand and interpret Single sample t Independent samples t Dependent samples t Use SPSS to compute the same tests and interpret the output. Set alpha (p level). State hypotheses, Null and Alternative.

476 views • 27 slides

Inference about Two Population Proportions

Inference about Two Population Proportions. Definition.

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t-test

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8-5 Estimating mean differences

8-5 Estimating mean differences. Comparing two populations. Are two populations different? Really? Just a little? What if I wanted to compare the mean test grades of two classes. How different might they be? Independent samples are completely unrelated to each other.

1.33k views • 22 slides

Chapter 25

Chapter 25. Paired Samples and Blocks. Independent vs. Dependent Samples.

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A SYSTEM FOR CHOOSING STATISTICS

A SYSTEM FOR CHOOSING STATISTICS. What type of design do you have? What do you want to find out? What type of data do you have? . Type of Design: Descriptive. What is a typical score? interval/ratio, no outliers: mean ordinal or higher: median nominal: mode

265 views • 18 slides

HYPOTHESIS TESTING: ABOUT TWO DEPENDENT POPULATIONS

HYPOTHESIS TESTING: ABOUT TWO DEPENDENT POPULATIONS. Two D ependent Populations. T he significance test for mean difference in paired (two dependent) populations Wilcoxon Signed Ranks Test The Significance Test for The Difference Between Two Dependent P opulation Proportions

276 views • 18 slides

t -test

t -test. EDRS Educational Research & Statistics. Most common and popular statistical test when comparing TWO sample means. T -tests, though used often with means, can be used on correlation coefficients, proportions, and regression coefficients.

569 views • 15 slides

Nonparametric Methods: Analysis of Ranked Data

Nonparametric Methods: Analysis of Ranked Data. Chapter 18. GOALS. Conduct the sign test for dependent samples using the binomial and standard normal distributions as the test statistics. Conduct a test of hypothesis for dependent samples using the Wilcoxon signed-rank test .

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2-Sample T-Tests

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Statistical Inference on Two Populations

Statistical Inference on Two Populations. Many real world problems involve the comparison of 2 populations Examples: Medical trial in which participants are randomly assigned a drug or a placebo Quality control testing that compares lifetime of product A to product B

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COMPARING TWO POPULATIONS

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