b) Eights pots, growing three barley plants each, were exposed to high tension discharge while nine similar pots were enclosed in an earthed wire cage. The number of tillers (shoots) in each pot was as follows: Caged: 17, 27, 18, 25, 27, 29, 27, 23, 17. Electrified: 16, 16, 20, 16, 21, 17, 15, 20. Discuss whether electrification exercises any real effect on tillers.

Jessica wants to plan where she will place furniture in her room, so she has drawn a scale model of her room in order to begin planning. the scale model is 11 inches long and 8.5 inches wide. jessica notices that the door to her room takes up 1.75 inches on the right-side wall of her room, and she realizes that she cannot place any furniture in the area that the door turns through when it is opened.