Renee is studying the effect of positive reinforcement for her psychology class. She gets 8 pigeons, whom are measured for number of correct responses on a memory test before and after reinforcement training. Using a two-tailed test and use the data below to determine whether or not there is a difference between the two measurement conditions. Before Reinforcement After Reinforcement 6 5 8 8 5 4 7 6 4 3 7 7 6 6 8 4 How do you interpret the results of the null hypothesis test