Multiple Choice
Solve the problem.
-If the life of a car engine, calculated in miles, is normally distributed, with a mean of 200,000 miles and a standard deviation of 18,000 miles, what should be the guarantee period if the company wants less than of the engines to fail while under warranty?
A) Less than 236,900 miles
B) Less than 148,160 miles
C) Less than 184,880 miles
D) Less than 163,100 miles
Correct Answer:

Verified
Correct Answer:
Verified
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