The line width for semiconductor manufacturing is assumed to be normally distributed with a mean of 0.5 micrometer and a standard deviation of 0.05 micrometer. What is the probability that a line width is greater than 0.62 micrometer?
Mean = 0.5
Standard deviation = 0.05
"P(X>0.62)=1-(Z>\\frac{X-\\mu}{\\sigma})"
"P(X>0.62)=1-(Z>\\frac{0.62-0.50}{0.05})=1-(Z>2.4)"
From Z normal distribution table, p-value is:
"P(X>0.62)=1-0.9918=0.0082"
This means there is only 0.82% of the probability that a line width is greater than 0.62 micrometer.
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