In a Manufacturing Process, a Machine Produces Bolts That Have

question 67

Multiple Choice

In a manufacturing process, a machine produces bolts that have an average length of 3 inches with a variance of .03. If we randomly select three bolts from this process, what is the probability the mean length of the bolt is at most 3.1 inches?

• A) 84.13%
• B) 100%
• C) 71.57%
• D) 28.43%
• E) 15.87%

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