Answer
P=0.1336, z=±1.96.
Work Step by Step
The P is the probability of the z-score being more than 1.5 or less than -1.5 is the sum of the probability of the z-score being less than -1.5 plus 1 minus the probability of the z-score being less than 1.5, hence:P=0.0668+1-0.9332=0.1336. The critical value is the z-score belonging to 0.025 to the left or right, hence z=±1.96.
