a. Tom designed a complete factorial experiment with 2 factors. One factor had 4 levels, the...

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Statistics

a. Tom designed a complete factorial experiment with 2 factors.One factor had 4 levels, the other had 5 levels. For eachcombination of levels of factors, there were 6 replicates. In theANOVA table associated with this design, what were the degrees offreedom of the interaction?

a. 7, b. 12,   c. 20, d. 24, e. 30.

b. In the above ANOVA table of the complete factorialexperiment, suppose we want to test the significance of themain effect of the factor with 4 levels. What is the distributionwe use to calculate p-values?             

a. F(3, 100), b. F (4, 120),   c. F (4, 100), d. F (5, 100),e. F (5, 120).

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