A Researcher Selects a Sample of 49 Participants from a Population

Multiple Choice

A researcher selects a sample of 49 participants from a population with a mean of 12 and a standard deviation of 3.5.What is the probability of selecting a sample mean that is at least equal to the population mean?

A) .50
B) equal to the probability of selecting a sample mean that is at most equal to the population mean
C) .50 and equal to the probability of selecting a sample mean that is at most equal to the population mean
D) none of these