A study considered whether daily consumption of garlic could reduce tick bites. The study used a crossover design where half of the subjects used placebo first and garlic second and half the reverse. The authors described garlic being more effective with 37 subjects and placebo being more effective with 35 subjects. this suggest a real difference between garlic andplacebo, or are the results consistent with randomvariation?

a) Find the test statistic value

b) Find the P-Value