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Unformatted text preview: confidence level. ( c ) To do : The company guidelines specify that the population standard deviation be less than 0.35% of the mean to 98% confidence level. Estimate how many additional resistors the quality control engineer needs to pull off the assembly line to measure. Solution : Example Given : Several measurements are taken in a wind tunnel of pressure difference as a function of distance normal to the direction of flow over a body. Data point x (mm) Δ P (kPa) 1 0 0.356 2 2.0 0.679 3 4.0 0.478 4 6.0 0.564 5 8.0 0.390 6 10.0 0.581 7 15.0 0.805 8 20.0 0.723 ( a ) To do : Calculate the linear correlation coefficient Solution : ( b ) To do : To what confidence level can we state that there is a trend in the data? Solution :...
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 Spring '08
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 Statistics, Normal Distribution, Confidence Level, Quality Control Engineer

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