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
Correct Answer:
Verified
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