I wonder question3 An O-ring is a solid-rubber seal shaped like a doughnut or to

Question

I wonder question3

An O-ring is a solid-rubber seal shaped like a doughnut or torus. When compressed between mating surfaces, an O-ring blocks the passage of liquids or gases. Parco manufactures O- rings in a wide range of sizes, but its largest O-ring has an inner diameter of 25.94 inches, with a tolerance of ± 0.12 inch. The specification limits of this O-ring are 25.82 and inches. 25.94 26.06 25.70 30.12 26.56 32.34 QUESTION 3 Referring to Parco's O-ring in the above question, it is determined that the mean and standard deviation of this O-ring's dimensions are determined to be 25.88 (mean) and 0.05 (standard deviation. What is the probability that a randomly selected O-ring will have an inner diameter, x, that is out of specification? Assume that the process is in control and that the population of all jar fills is normally distributed and use Microsoft Excel functions (not the Standard Normal table) to arrive at the correct answer. O 0.05 0.67 0.5 O 0.7 0.33 O 0.12

Explanation / Answer

So the ans is 0.12

Option F

Mean(M) 25.88 Std Dev (S) 0.05 LSL(X) USL(X) 0.12 25.82 26.06 Ans 2 Formula A 0.12 1.00 B NORM.DIST(X,M,S,TRUE) Ans 3

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