L An example, cont Given in the problem u=12.1 minutes 0=2.0 minutes a) Greater than 14.1 minutes x-=141-12.1=100 2.0 P(x>141)=P(z>1.00) 5-3413=0.1587 z=1.00 o 2002 The Wadsworth GroupAn Example, cont. Given in the problem: µ= 12.1 minutes, s = 2.0 minutes • a) Greater than 14.1 minutes P(x > 14.1) = P(z > 1.00) = .5 – .3413 = 0.1587 z = x– s = 14.1–12.1 2.0 = 1.00 © 2002 The Wadsworth Group z = 1.00