group_ch15_1_ans.doc Page 1 of 1 

15.1      ANSWER: FALSE

15.3      ANSWER: TRUE

15.5      ANSWER: TRUE

15.7      ANSWER: FALSE

15.9      ANSWER: FALSE

15.11      ANSWER: FALSE

15.13      ANSWER: TRUE

15.15      ANSWER: FALSE

15.17      ANSWER: TRUE

15.19      ANSWER: FALSE

15.21      ANSWER: TRUE

15.23      ANSWER: FALSE

15.25      ANSWER: TRUE

15.27      ANSWER: FALSE

15.29      ANSWER: FALSE

15.31      ANSWER: FALSE

15.33      ANSWER: FALSE

15.35      ANSWER: TRUE

15.37      ANSWER: FALSE

15.39      ANSWER: FALSE

15.41      ANSWER: FALSE

15.43      ANSWER: TRUE