SAXENA Discussion 12

SAXENA Discussion 12 - Discussion over Chapter 12 Winter...

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Discussion over Chapter 12 Winter 2012 Name__Sadhvi Saxena____ Section__0103__ ANOVA is a statistical test for analyzing 3 or more means. The results will tell us if at least 1 mean is significantly different from the others but does not tell us which means are significantly different from each other. An additional statistical test is needed for that. We will use Tukey’s multiple comparisons test. Beetles were randomly assigned to one of three temperature treatments, 10, 20 or 30 degrees C. After 2 months the amount of growth for each beetle was recorded. The results are given below. You want to know if temperature has an effect on beetle growth. 10 C 3 4 2 3 4 5 3 4 20C 8 7 8 9 6 7 8 9 30C 14 16 12 13 17 15 13 12 Analyze these data using an ANOVA. IN MOZILLA FIREFOX!!! Go to http://faculty.vassar.edu/lowry/ank3.html You have 3 treatments with 8 observations for each treatment. Calculations work best if you enter data yourself in the ‘DATA ENTRY CELLS’. Follow directions given and fill in
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SAXENA Discussion 12 - Discussion over Chapter 12 Winter...

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