Hypothesis Testing: z-test & t-test
When you make a testable hypothesis, you specify the relationship you expect to find between your IV and the DV. If you specify the exact direction of the relationship

http://www.psych.wright.edu/gilk-classes/Psy301_s06/ztest.ppt

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9: Basics of Hypothesis Testing
9: Basics of Hypothesis Testing . In Chapter 9: 9.1 Null and Alternative Hypotheses. 9.2 Test Statistic. 9.3 P-Value. 9.4 Significance Level. 9.5 One-Sample z Test

http://www.sjsu.edu/faculty/gerstman/biostat-text/Gerstman_PP09.ppt

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PowerPoint Presentation
The intent of hypothesis testing is formally examine two opposing conjectures Critical Values and Decision Rules are the same as for any Z-test or t-test.

http://www.webpages.uidaho.edu/~redgeman/Generic%2520Presentations/Statistics_Hypothesis-Testing-%26-Confidence-Intervals.ppt

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Advanced Data Analysis ? Hypothesis Testing
Advanced Data Analysis ? Hypothesis Testing . Hypothesis Tests ; z-test; Used to test hypotheses that a mean is greater (less) than or equal to some value

http://www.bus.iastate.edu/laczniak/MKT%2520444%2520–%2520Web%2520Files/Advanced%2520Data%2520Analysis%2520z-test%2520hypothesis%2520testing%252007.ppt

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Hypothesis Testing
Understand the definitions used in hypothesis testing. State the null and alternative hypotheses. Find critical values for the z test.

http://atlantis.mendocino.edu/ssoss/Statistics%2520Lectures/ch8.ppt

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Overview of Hypothesis Testing
Overview of Hypothesis Testing . Laura Lee Johnson, Ph.D. Statistician Z test . Variances equal? T test w/ pooled variance . T test w/ unequal variance

http://www.nihtraining.com/cc/ippcr/current/downloads/LLJ110705.ppt

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Chapter 8
Outline: The logic of hypothesis testing; The Five-Step Model; Hypothesis testing for single sample means (z test and t test) Testing sample proportions

http://publish.uwo.ca/~pakvis/1sample.ppt

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Hypothesis Testing
Hypothesis Testing for Differences . Independent Samples * Two-Group t test * Z test * Paired. t test . Hypothesis Tests . One Sample . Two or More Samples

http://www.bauer.uh.edu/nbsyam/documents/MktRes-MARK7362-Lecture4_010.ppt

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Hypothesis Testing:
Hypothesis Testing about Means # Groups . Purpose . Test . Comment . One . Sample and Population comparison . Z-test . If ? is known; and large samples

http://faculty.unlv.edu/npomirleanu/hypothesis%2520testing.ppt

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Hypothesis Testing
Critical Values for the Z Test . 2.576 . 2.326 .01 . 1.960 . 1.645 .05 . Research Hypothesis Testing Example . The mean lifetime of a particular brand of light bulb is

http://faculty.ycp.edu/~jlevisky/BEH260/Hypothesis%2520Testing.ppt

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