Practice question

Question 11 Find the two z-scores that form the middle shaded area under the standard normal distribution. The shaded area is symmetric about z = 0. Round your answer to two digits after the decimal. Hint: Scan Table II (the Z Table) for the appropriate areas, then determine the corresponding z-scores. Note that the two unshaded tail areas are equal to each other (and the total area under the curve is one). Shaded Area = 0.3 -3 -2 Negative z-score = Positive z-score =