students hit an average of 12 orange cones while driving the obstacle course during their final exam. To test a theory the instructor recruits a sample of 16 students drivers to attempt the obstacle course while sending a text message. The number of cones hit for each driver are 11, 12, 14, 12, 13, 12, 15, 14, 14, 15, 12, 13, 14, 13, 14, 10 what is the null hypothesis for this research question. Calculate the amount of effect using percentage of variance accounted for and interpret the value using specific IV/DV descriptors