Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

researchers wanted to investigate whether factor A and Factor B would alter the

ID: 3228563 • Letter: R

Question

researchers wanted to investigate whether factor A and Factor B would alter the performance of mice in a maze. Time was recorded for the trial of the N=24 mice. Test whether a main effect of Factor A, Factor B, or an interaction occurs between the factors. Test at alpha= .05. What is the SS for factor A? Time Remaining 41 minutes Hypothesis Testing Question 2 Part 2 Researchers wanted to investigate whether Factor A and Factor B would alter the the performance of was recorded for the trial of the N 24 mice. Test whether a main effect of Factor A, Factor B, or an in between the factors. Test at alpha .05. What is the ss for Factor A? All 2 9- 2 (This is the break between A1 and A2) Please enter2 digits after the decimal point.

Explanation / Answer

Answer:

Two factor ANOVA

Factor B

Means:

B1

B2

B3

A1

3.5

6.8

3.8

4.7

Factor A

A2

3.8

10.8

3.5

6.0

3.6

8.8

3.6

5.3

4

replications per cell

ANOVA table

Source

SS

   df

MS

F

   p-value

Factor A

10.67

1

10.667

5.19

0.0352

Factor B

140.08

2

70.042

34.07

0.0000

Interaction

21.58

2

10.792

5.25

0.0160

Error

37.00

18

2.056

Total

209.33

23

SS for Factor A =10.67

Factor A: Calculated F=5.19, P=0.0352 which is < 0.05 level. Ho is rejected. Factor A is significant.

Factor B: Calculated F=34.07, P=0.0000 which is < 0.05 level. Ho is rejected. Factor B is significant.

Interaction: Calculated F=5.25, P=0.0160 which is < 0.05 level. Ho is rejected. Interaction is significant.

Two factor ANOVA

Factor B

Means:

B1

B2

B3

A1

3.5

6.8

3.8

4.7

Factor A

A2

3.8

10.8

3.5

6.0

3.6

8.8

3.6

5.3

4

replications per cell

ANOVA table

Source

SS

   df

MS

F

   p-value

Factor A

10.67

1

10.667

5.19

0.0352

Factor B

140.08

2

70.042

34.07

0.0000

Interaction

21.58

2

10.792

5.25

0.0160

Error

37.00

18

2.056

Total

209.33

23