Suppose two teams of researchers recruited participants and measured their math ability on a scale from 1 to 70. The first team sampled 30 participants; they obtained a sample mean of 50 and a 95% Cl of [40, 601. The second team sampled 40 participants; they obtained a sample mean of 55 and a 95% Cl of [50, 60]. Which team's point estimation of the population mean is more precise. O A. First team O B. Second team O C. Both are the same.