A part of a study of family dynamics you've survey 15 parents and 18 non-parents during the quarantine period. Average happiness among parents was 8.2 with a standard deviation of 5.1. Average happiness among non-parents was 11.2 with a standard deviation of 3.2. A. Are parents different than nonparents? Use alpha = 0.05. B. Would your answer change if you had surveyed 20 parents rather than 15