Fill in the blanks: The number of hours it takes for a certain part in a manufacturing process to wear out is assumed to be from a population with a normal probability distribution with a mean of 1,350 hours and a standard deviation of 190 hours. If this is true, then approximately 68% of the parts are predicted to wear out between _______ and _______ hours of operation.

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anonymous · Answer

@hal_stirrup help please?

anonymous · Answer

ok

anonymous · Answer

the answer is really in the question. do you know the  standard normal curve.

anonymous · Answer

we were going to learn it on monday but there isn't any school so the theacher gave it to us to figure out