Suppose the time it takes for a purchasing agent to complete an online ordering
Process is normally distributed with a mean of 8 minutes and a standard deviation of 2
Minutes. What is the probability that it takes longer than 11 minutes for the purchasing
Agent to complete the process?
A) 0.9332
B) 0.4332
C) 0.0668
D) 0.5668
E) none of the above

Question

Quizplus · Accepted Answer

The Z-score for 11 minutes is (11-8)/2 = 1.5. The probability of a Z-score greater than 1.5 is 0.0668.

Suppose the Time It Takes for a Purchasing Agent to Complete