Kizspy | Question: 36
(Choose 1 answer)
The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of 45 minutes and a standard deviation of 10 minutes. A random sample of 16 cars is selected. What is the probability that the sample mean will be between 39 and 48 minutes?
Let P(Z < 1.2)=0.8849; P(Z < -2.4) = 0.0082, P(Z < 0) = 0.5.
A. 0.3376
Β. 0.8151
C. 0.4572
D. 0.8767
E. None of the other choices is correct
