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Example of ANOVA
[For Independent Groups Design]


Research Question

Experimental Design

Statistical Hypothesis

Hypothesis Testing Model

The Test Statistic

The Sampling Distribution

Type-I Error rate

Decision Rule


Data

Descriptive Statistics

Physical Equality
Null Matching
125.15
113.00
96.00
110.30
105.90
98.30
90.35
99.75
109.10
106.90
120.30
119.90
113.10
104.10
112.60
92.75
120.15
104.95
122.65
118.55
127.30
152.90
127.80
Physical Equality Null Matching
n 14 9
Mean 117.28 105.55
est sigma 15.200 8.203
est variance 231.035 67.289
SS 3003.454 538.315


ANOVA Source Table

Source of Variation SS df MS F
Numerator of F Between Groups 753.127337 1 753.127337 4.465473381
Denominator of F Within Groups 3541.76875 21 168.6556548
Total 4294.896087 22

Statistical Decision

Interpretation


Calculations for ANOVA (optional)


© 2006 by Burrton Woodruff. All rights reserved. Modified Tue, Sep 26, 2006