Name 4 types of costomer data that may be analyzed in developing a costumer profile

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking

The nervous system is responsible for our fight-or-flight response. a.autonomicb. parasympatheticc. somaticd. sympathetic  select the best answer from the choices providedabcd

The flashing of directional signals as it indicates that used it safe to bed