Specifications for a certain job call for washers with an inside diameter of 0.3 ± 0.005 inch. If the inside diameters of the washers supplied by a given manufacturer may be looked upon as a random variable having the normal distribution with μ=0.302 inch and σ=0.003 inch, what percentage of these washers will meet specifications?
Answer:
Given that:
Specifications for a certain job call for washers with an inside diameter of 0.3 ± 0.005 inch. If the inside diameters of the washers supplied by a given manufacturer may be looked upon as a random variable having the normal distribution with μ=0.302 inch and σ=0.003 inch
Inside diameter =
The percentage of these washers will meet specifications is 83.31%
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