x 27_The plans must confirm enough to meet the commitment made in the developing stage. This refers to "commitment concept" Select one: True False 28_Manager attentions become significant in a case when deviation become out of the acceptable range of variation Select one: True False 29_The benchmarking approach can assess company economic performance and other performance indicators Select one: False Jwhen the manager observed that variance occur within an acceptable range, he must do correction action in this case Select one: True False