19. the amount of oxygen consumption was measured in six

     19. The   amount of oxygen consumption was measured in six individuals over two   10-minute periods while   sitting with their eyes closed. During one period, they   listened to an exciting   adventure story; during the other, they heard restful   music.   Based on the results shown, is   oxygen consumption less when listening to the   music? Use the .01   significance level. (a) Use the steps of hypothesis testing.   (b) Sketch the distributions   involved. (c) Explain your answer to someone who   understands mean, standard   deviation, and variance but knows nothing else   about statistics.   Participant Story Music   1 6.12 5.39   2 7.25 6.72   3 5.70 5.42   4 6.40 6.16   5 5.82 5.96   6 6.24 6.08