The statistical hypothesis for a test on a mean is given below, as well as the the reduced deviation obtained for this test. Ho: m = 918 H1: m < 918 Reduced deviation Z = -1.54 Determine the descriptive threshold, a (base)p

a) 0.0309 b) 0.4362 c) 0.0618 d) 0.1236 e) 0,3764 f) 0,4691