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Displaying z test PowerPoint Presentations



8.4 Testing the Difference Between Proportion - A Teachers' Page PPT

Presentation Summary : 8.4 Testing the Difference Between Proportions Statistics Mrs. Spitz Spring 2009 Objectives/Assignment How to perform a z-test for the difference between two ...

Source : http://www.dgelman.com/powerpoints/statistics/spitz/8.4%20Testing%20theDifference%20Between%20Proportions.ppt

Z-Tests, T-Tests, Correlations - University of Texas at El Paso PPT

Presentation Summary : A Z-Test uses the normal distribution to obtain a test statistic based on some data that can be compared with a sampling distribution of chance, ...

Source : http://utminers.utep.edu/crboehmer/T-Tests%20&%20Chi2.ppt

7.4 Hypothesis Testing for Proportions - d Gelman PPT

Presentation Summary : 7.4 Hypothesis Testing for Proportions Statistics Mrs. Spitz Spring 2009 Objectives/Assignment How to use a z-test to test a population proportion, p.

Source : http://www.dgelman.com/powerpoints/statistics/spitz/7.4%20Hypothesis%20Testing%20for%20Proportions.ppt

Reasoning of significance tests - Columbia University PPT

Presentation Summary : T-tests Computing a t-test the t statistic the t distribution Measures of Effect Size Confidence Intervals Cohen’s d Z as test statistic t as a test statistic t as ...

Source : http://www.columbia.edu/cu/psychology/courses/S1610q/lectures/07Ttests.ppt

Two Proportion z-Tests - Wikispaces PPT

Presentation Summary : Two Proportion z-Interval and z-Tests Small differences. Recall from Random Variables If X and Y are two independent Random Variables from Normal distributions, we ...

Source : http://wheelesclassroom.wikispaces.com/file/view/Two+Proportion+z-Tests.ppt

Comparing Two Proportions (p1 vs. p2) - Winona State University PPT

Presentation Summary : Comparing Two Proportions (p1 vs. p2) Inferential Methods Large independent samples 1. z-test for comparing p1 vs. p2 2. CI for (p1 – p2) 3.

Source : http://elearning.winona.edu/projects/N701/Powerpoints/ComparingTwoProportions.ppt

The t-test - University of South Florida PPT

Presentation Summary : The t-test Inferences about Population Means Questions What is the main use of the t-test? How is the distribution of t related to the unit normal?

Source : http://luna.cas.usf.edu/~mbrannic/files/regression/8%20The%20t-test.ppt

One Sample t - test - Xythos WFS PPT

Presentation Summary : One Sample t-test Hypothesis Testing: Unknown Parameters Requires t-test Comparison of One Sample Mean to a Specific Value Outline Differences between t and z Unknown ...

Source : https://pantherfile.uwm.edu/ag/www/teach_pdf/lecturenotes/stats/09%20One%20Sample%20t-test.ppt

Hypothesis testing , One sample tests - The University of ... PPT

Presentation Summary : Hypothesis testing Draw inferences about a population based on a sample ... then H0 is rejected -If Z (test statistic) is smaller than critical value, ...

Source : http://www.eeescience.utoledo.edu/Faculty/Mayer/Biostats%20ppt%2006/hypothesis%20testing%20lecture.ppt

Fundamentals Of Hypothesis Testing: One Sample Test PPT

Presentation Summary : Title: Fundamentals Of Hypothesis Testing: One Sample Test Subject: Statistics for Managers Using Microsoft Excel, 2/e Keywords: Chapter 8, Hypothesis Testing ...

Source : http://www.clt.astate.edu/asyamil/groebner/ppts/Chapter%208%20Handout.PPT

Hypothesis Testing – Two Samples - Bryan Gumm - Welcome! PPT

Presentation Summary : Hypothesis Testing – Two Samples Chapters 12 & 13 Chapter Topics Comparing Two Independent Samples Independent samples Z test for the difference in two means Pooled ...

Source : http://www.bjgumm.com/psy2402/1213.ppt

Proportions and Inference - Nashua PPT

Presentation Summary : Assumptions and Conditions for a 1-proportion z-test. The data are an SRS. This takes care of randomization. The population is at least 10 times the sample size

Source : http://schools.nashua.edu/myclass/kimballm/apstats/Chapters%2011%20%2012%20Documents/Proportions%20and%20Inference%20-%201%20and%202%20prop%20z-tests.pptx

Lecture 14 - Alex Braunstein's Blog PPT

Presentation Summary : ... Means * Two-Sample Z test We want to test the null hypothesis that the two populations have different means H0: 1 = 2 or equivalently, 1 ...

Source : http://alexbraunstein.com/lecture14.ppt

Independent Samples t-Test (or 2-Sample t-Test) PPT

Presentation Summary : Independent Samples t-Test (or 2-Sample t-Test) Advanced Research Methods in Psychology - lecture - Matthew Rockloff When to use the independent samples t-test The ...

Source : http://psychologyaustralia.homestead.com/index_files/04a_Independent_Sample_t-Test.ppt

Fundamentals of Research Project Planning: Hypotheses ... PPT

Presentation Summary : Comparing Population Parameters (Z-test, t-tests and Chi-Square test) Dr. M. H. Rahbar Professor of Biostatistics Department of Epidemiology Director, Data ...

Source : http://www.pitt.edu/~super7/19011-20001/19031.ppt

Hypothesis Testing - University of Florida PPT

Presentation Summary : Hypothesis Testing Goal: Make statement(s) regarding unknown population parameter values based on sample data Elements of a hypothesis test: Null hypothesis ...

Source : http://www.stat.ufl.edu/%7Ewinner/sta6934/hyptest.ppt

Statistics - Groch Biology PPT

Presentation Summary : Statistics From BSCS: Interaction of experiments and ideas, 2nd Edition. ... use t-test for samples less than 30 and z-test for samples greater than 30) ...

Source : http://www.grochbiology.org/Statistics.ppt

The t-test - University of South Florida PPT

Presentation Summary : The t-test Inferences about Population Means Questions How are the distributions of z and t related? Given that construct a rejection region.

Source : http://luna.cas.usf.edu/%7Embrannic/files/regression/7%20The%20t-test.ppt

Parametric versus Nonparametric Statistics – When to use ... PPT

Presentation Summary : Title: Parametric versus Nonparametric Statistics – When to use them and which is more powerful? Author: Portable Workstation Last modified by

Source : http://psyphz.psych.wisc.edu/%7Eshackman/Parametric_vs_NonparametricStats.ppt

Objectives - University of North Texas PPT

Presentation Summary : One Sample and Two Sample T-tests Introduce t test Hypothesis testing using a t test Paired t test Independent samples t test Recap Single score compared to a known ...

Source : http://www.unt.edu/rss/class/mike/3610/psyc_3610_t-test.ppt

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