Graphical Analysis of Variance (Graphical ANOVA) This set of slides ...

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Discussion Flight distances are different for different treatments, but they are also different within treatments What has caused the variation within each treatment? Factors other than paper weight must be having an effect: unexplained variation or error. 12
Discussion Some <strong>of</strong> the possibilities are: individual airplane construction, initial throwing height, and initial thrust and direction These unmeasured factors probably vary slightly from throw to throw and thus could account for some or all <strong>of</strong> the variation observed within each treatment Is there confounding? (What is confounding?) 13
Page 1 and 2: Graphical Analysis of Variance (Gra
Page 3 and 4: A Paper Airplane Experiment Does th
Page 5 and 6: The Paper Airplane Experiment Data
Page 7 and 8: Paper Airplane Data > tail(airplane
Page 9 and 10: Compare Averages for the 3 Groups F
Page 11: Compare Averages for the 3 Groups N
Page 15 and 16: Identifying Within Group Variation
Page 21 and 22: Does paper type have an effect on m
Page 23 and 24: Does paper type have an effect on m
Page 25 and 26: Graphically testing whether paper t
Page 27 and 28: The Graphical Test Histogram of err
Page 29 and 30: The Graphical ANOVA Procedure 1. Co
Page 31 and 32: Application of the function to the
Page 33 and 34: Motor Vibration Example 5 different
Page 35 and 36: Motor Vibration Data > names(motor)
Page 37 and 38: Motor Vibration Data > names(motors
Page 39 and 40: Motor Vibration Data Frequency 0 2
Page 41 and 42: An Example Using Simulated Data Wha
Page 43 and 44: Simulated Data > graphicalANOVA(pre

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