A sample of n = 16 is selected from a normal population with µ = 60 and σ = 20. For each question, provide the z-score and probability/proportion for your answer. A) What is the probability that the sample mean will be greater than 50? B) What is the probability that the sample mean will be less than 56? C) What is the probability that the sample mean will be within 5 points of the population mean? That is, what is p (55 < X < 65)?
