In: Statistics and Probability
Question #1. A sample of n=16 is selected from a population = 100 and σ = 32. If the sample mean is 127, what is the z-score for this sample mean?
Question #2. A sample of n =16 is selected from a normal population with M = 50, σ= 20. What is the probability of obtaining a sample mean greater than 49? Report to the thousandths.