Question: The extraction force required to remove a cork from a bottle of wine has a normal distribution with a mean of 310 Newtons and a

The extraction force required to remove a cork from a bottle of wine has a normal with a mean of 310 Newtons and a standard deviation of 36 Newtons.
a. The specs for this variable, given in Applied Example 6.13, were “300 N + 100 N/-150 N” Express these specs as an interval.
b. What percentage of the corks is expected to fall within the specs?
c. What percentage of the tested corks will have an extraction force of more than 250 Newtons?
d. What percentage of the tested corks will have an extraction force within 50 Newtons of 310?

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a From 300 150 to 300 100 or from 150N to 400N b P150 x 400 ... View full answer

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