The manager of a computer help desk operation has collected enough data to conclude that the distribution of time per call is normally distributed with a mean equal to 8.21 minutes and a standard...

Extracted text: The manager of a computer help desk operation has collected enough data to conclude that the distribution of time per call is normally distributed with a mean equal to 8.21 minutes and a standard deviation of 2.14 minutes. If a random sample of 40 calls is selected, what is the probability that a call will last longer than 10 minutes? a. 0.0238 b. 0.5125 C. 0.9762 d. 0.0401 e. 0.9599 f. 0.4875 g. 0.0125 h. 0.9875