Kizspy | Question: 102
(Choose 1 answer)
FASTER LOW LOW
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. So, 90% of the
sample means will be greater than what value?
Let P(Z < -1.28) 0.1, P(Z< 0) = 0.5 and P(Z < 1) = 0.8.
A. 52.6 minutes
B. 52.1 minutes
C. 41.8 minutes
D. 44.3 minutes
E. None of the other choices is correct
