Using the contrast to test the hypothesis that the difference between treatment 1 and the average of treatment 2 and treatment 3 is equal to zero. What is your conclusion?   contrast                 estimate   SE df t.ratio p.value  trt 1 - 0.5(tr2 + trt 3)    -26.8 4.84  9 -5.529  0.0004

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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Author:HOUGHTON MIFFLIN HARCOURT
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Chapter8: Graphing Quadratic Functions
Section8.5: Using Intercept Form
Problem 103E
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Using the contrast to test the hypothesis that the difference between treatment 1 and the average of treatment 2 and treatment 3 is equal to zero. What is your conclusion?

 

contrast                 estimate   SE df t.ratio p.value

 trt 1 - 0.5(tr2 + trt 3)    -26.8 4.84  9 -5.529  0.0004

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