A researcher selects a sample of 25 participants from a population with a mean of 10 and a standard deviation of 5.What is the probability of selecting a sample mean equal to at least 12?
A)less than 1%
B)greater than 50%
C)about the same as selecting a sample mean that is at least equal to the population mean
D)equal to the probability of selecting a sample mean that is smaller than 8

Question

Quizplus · Accepted Answer

The Answer of A researcher selects a sample of 25 participants from a population with a mean of 10 and a standard deviation of 5.What is the probability of selecting a sample mean equal to at least 12?
A)less than 1%
B)greater than 50%
C)about the same as selecting a sample mean that is at least equal to the population mean
D)equal to the probability of selecting a sample mean that is smaller than 8

A Researcher Selects a Sample of 25 Participants from a Population