Question 1050168
 {{{z =blue (x - mu)/blue(sigma/sqrt(n))}}}
P(x>270) = 1 - P(<=270) = 1- P(z<= (270-266)/(16/sqrt(6)) =  1- P(z<= .6124)
P(z<= .6124) = .73
P(x>270) = 1- P(z<= .6124) = 1 -.73 = .27