Multiple Choice
The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.3 inches.What is the probability that the average length of a steel sheet from a sample of 9 units is more than 29.95 inches long?
A) .8413
B) .6293
C) .3707
D) .1587
Correct Answer:
Verified
Correct Answer:
Verified
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