A Stat question need help! Hope can get right answer with steps. Thank you so much.

2) (8 points) A researcher randomly assigns five individuals to receive a new experimental procedure, measuring number of decision-making errors before and after the procedure. Baseline scores were 7, 6, 9, 7, and 6. Scores after the experimental treatment were. 5, 2, 4, 3, and 6. Conduct a two-tailed hypothesis test with a = .05, being sure to specify the null and alternative hypotheses