How should I approach this questions

Related sample t A sample of 9 pigeons take part in a learning study. First, the experimenter measures how many times per minute they peck at a green key. Then a reinforcement schedule is introduced so that the pigeons receive a reward each time they peck the key. Then their pecking rate per minute is measured again. Pigeon Baseline Reward pecks/min D D2 pecks/min 1 12 8 10 Complete the table. a) Calculate related samples t for this data. b) How many degrees of freedom are associated with this test? c) Use the t table to find tcritical for a 2-tailed test with an alpha level of .05 d) What is the likelihood that the observed difference between the 2 conditions was due to chance alone? e) Did the reward have a statistically significant effect on pecking behaviour? f) Write the results of the t-test in standard APA form