Question

1. A study was conducted to compare 3 speed reduction marking (SRM) conditions on drivers acceleration in an automobile simulator. A sample of 15 drivers was selected, and each driver drove the simulator under the 3 SRM conditions (No SRM with group mean 0.161, Longitudinal SRM with group mean 0.126, Traverse SRM with group mean -0.032 and overall mean 0.085). (a) What model design is this? (b) Create an ANOVA table with degrees of freedom and Sum of Squares (given that SS(Driver)-0.987 and SS(Total)-2.331. Test whether treatment is significant c) (d) Use Tukeys method to obtain simultaneous 95% confidence intervals for comparing all pairs of treatment means (e) Compute the Relative Efficiency for this design relative to the Completely Ran- domized Design. and determine how many drivers per treatment would be needeod for a Completely Randomized Design to have similar standard error of treatment means as this design has.

Answer 1