Oxnard Petro, Limited, has three interdisciplinary project development teams that function on an ongoing basis. Team members rotate from time to time. Every 4 months (three times a year) each department head rates the performance of each project team (using a 0 to 100 scale, where 100 is the best rating). Are the main effects significant? Is there an interaction?

Year	Marketing	Engineering	Finance
2007	88	84	94
2007	82	81	98
2007	89	71	86
2009	87	82	91
2009	86	66	97
2009	90	83	86
2011	81	70	79
2011	89	72	87
2011	87	69	89

Click here for the Excel Data File

(a-1)Choose the correct row-effect hypotheses.

a.H₀:A₁?A₂?A₃? 0??year means differ

H₁: All theA_jare equal to zero??year means are the same

b.H₀:A₁=A₂=A₃= 0??year means are the same

H₁: Not all theA_jare equal to zero??year means differ

choose the correct answer

• a
• b

(a-2)Choose the correct column-effect hypotheses.

a.H₀:B₁?B₂?B₃? 0??department means differ

H₁: All theB_jare equal to zero??department type means are the same

b.H₀:B₁=B₂=B₃= 0??department means are the same

H₁: Not all theB_jare equal to zero??department type means differ

choose the correct answer

• a
• b

(a-3)Choose the correct interaction-effect hypotheses.

a.H₀: Not all theAB_jkare equal to zero??there is an interaction effect

H₁: All theAB_jkare equal to zero??there is no interaction effect

b.H₀: All theAB_jkare equal to zero??there is no interaction effect

H₁: Not all theAB_jkare equal to zero??there is an interaction effect

choose the correct answer

• a
• b

(b)Fill in the missing data.(Round your Table of Means valuesto 1 decimal place,SSandFvalues to 2 decimal places,MSvalues to 3 decimal places, andp-values to 4 decimal places.)

\fThe p-values range from highly significant (Department) to insignificant (Year). The interaction effect, if any, is since about samples in 100 would show an F statistic this large in the of interaction