Question

b. The table below suggests which of the following? (1pt) Factor B B1 B2 Factor A...

b. The table below suggests which of the following? (1pt)

Factor B

B1

B2

Factor A

A1

60

70

A2

40

50

[ ] A: Main effect of A only

[ ] B: Main effect of B only

[ ] C: Both main effects (only)

[ ] D: Both main effects and an interaction

c. The table below suggests which of the following? (1pt)

Factor B

B1

B2

Factor A

A1

60

100

A2

40

50

[ ] A: Main effect of A only

[ ] B: Main effect of B only

[ ] C: Both main effects (only)

[ ] D: Both main effects and an interaction

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

b)

B1 B2
A1 60 70 M=65
A2 40 50 M=45
M=50 M=60
main effect of A = avg of effect of A1-avg effect of A2= 20
main effect of B = avg of effect of B1-avg effect of B2= -10
interaction effect =(A1B2+A2B1)/2-(A1B1+A2B2)/2 = 0

option C is correct

[ ] C: Both main effects (only)

c)

A1 60 100 M=80
A2 40 50 M=45
M=50 M=75
main effect of A = avg of effect of A1-avg effect of A2= 35
main effect of B = avg of effect of B1-avg effect of B2= -25
interaction effect =(A1B2+A2B1)/2-(A1B1+A2B2)/2 = 15

option D is correct

[ ] D: Both main effects and an interaction

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