30 1 point Does music help plants grow faster? You divide 100 plants into two groups: shade plants and sun plants. Within each group, you randomly assign plants to ong of three types of music: classical, rock, or reggae. The selected type of music is played to each plant for 30 min a day over a period of 8 weeks. What type of experimental design is being used? Stratified Completely randomized Randomized block Matched pair