The data below are blood pressure measurements for hamsters as a function of Age and Sex. Sex

Question: The data below are blood pressure measurements for hamsters as a function of Age and Sex.

	Sex
Age	Male	Female
Adolescent	108	110
	110	105
	90	100
	80	90
	100	102
Mature	120	110
	125	105
	130	115
	120	100
	130	120
Old	145	130
	150	125
	130	135
	155	130
	140	120

a. (5 points) Analyze these data as a two-way factorial Model I ANOVA in SPSS to determine the effects of Age, Sex and the Age ? Sex interaction on blood pressure. Report and explain the ANOVA table from SPSS in your results.

b. (5 points) Below is a profile plot (e.g. Figures 12.1 and 12.2) of means by treatment. Diagram the mean effect of Age and of Sex. How does age affect blood pressure? Does the Figure suggest there is an interaction between Sex and Age? If so indicate what on the graph suggests this and explain.