Hannah wants to see if her new technique of ping-pong playing can increase one's ping-pong performance. she asks the u. s. olympic ping-pong team to work with her. half of the u. s olympic team is randomly assigned to be taught by the new style, the experimental group, and the other randomly assigned half are not, the control group. her technique does not significantly increase the performance of the experimental group compared to the control group, perhaps because they are already so good at the sport. this could be an example of

During a meeting, tammy, a branch manager for usa bank, pointed to the corporate organization chart on the wall. tammy remarked that "these people provide advice, recommendations, and research for us, and they are indicated with a dotted line. laura (our ceo) and the vice presidents of our organization are up here, indicated on the organization chart by a solid line vertical line." are indicated on the organization chart by a solid line and are indicated by a dotted line. a. line managers; temporary personnel b. line managers; personnel in training c. staff personnel; vital personnel d. line managers; part-time personnel e. line managers; staff personnel