Question 927434
set up time specification: t ≤ 10min
Sample: mean = 450min/40 = 11.25min, sd = 3min
{{{z =blue (x - 10)/blue(3/sqrt(40))}}}
z(11.25) = 1.25/(3/sqrt(40) = 2.6352
P(z > 2.6352) = .0042
........
1 percent level of significance
.0042< .01, equipment does NOT meet the set up time specification