Exercise 2.13, Continued
The following output lends further support to the belief that a person's metabolic rate has a positive linear relationship to lean body mass. This appears especially true for females.
The output was produced by running SAS's proc CORR. The source file is 2-13corr.sas.
Correlation Between Metabolic Rate and Lean Body Mass
-------------------------------------------- sex=F ---------------------------------------------
The CORR Procedure
2 Variables: rate mass
Simple Statistics
Variable N Mean Std Dev Sum Minimum Maximum
rate 12 1235 188.28289 14821 913.00000 1502
mass 12 43.03333 6.86842 516.40000 33.10000 54.60000
Pearson Correlation Coefficients, N = 12
Prob > |r| under H0: Rho=0
rate mass
rate 1.00000 0.87645
0.0002
mass 0.87645 1.00000
0.0002
Correlation Between Metabolic Rate and Lean Body Mass
-------------------------------------------- sex=M ---------------------------------------------
The CORR Procedure
2 Variables: rate mass
Simple Statistics
Variable N Mean Std Dev Sum Minimum Maximum
rate 7 1600 189.23971 11200 1362 1867
mass 7 53.10000 6.68855 371.70000 46.90000 62.90000
Pearson Correlation Coefficients, N = 7
Prob > |r| under H0: Rho=0
rate mass
rate 1.00000 0.59207
0.1614
mass 0.59207 1.00000
0.1614