Carry your intermediate computations to at least four decima

Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.

Solution

So the probability is

P(xbar<1.88)

= P((xbar-mean)/(s/vn) <(1.88-1.85)/(1.02/sqrt(50)))

=P(Z<0.21)

=0.5832 (from standard normal table)