Answer:
B. -15
Step-by-step explanation:
The question is incomplete, find the complete question attached. The point estimate of the mean is also known as the mean of the towns
Given the mean of two towns
xbarG for sample mean of Gotham = 35
xbarM for sample mean of Metropolis = 50
distribution of the difference between the 2 sample means = xbarG - xbarM
distribution of the difference between the 2 sample means = 35-50
distribution of the difference between the 2 sample means = -15
Hence option B is correct
