49
Answer (Choose 1 answer)
A population is normally distributed with a mean of 50 and a standard deviation of 10. If a random sample of size 16 is taken from the population, then what is the probability that this sample mean will be between 48 and 54?
Given that: P(Z<-0.8) = 0.2119; P(Z>1.6)=0.0548; P(Z<2)=0.9772
A. None of the others
B. 0.5653
C. 0.7333
D. 0.2667
