The upper and lower specifications for metal head plates are 5 cm plus or minus
ID: 2983024 • Letter: T
Question
The upper and lower specifications for metal head plates are 5 cm plus or minus 0.1. A sample of the metal head plates in 25 undergraduates yields a mean of 5.05. What is the population standard deviation if the population capability index is 1.666? (Points : 1)
0.01
0.02
0.03
0.04
0.05
A 50 volt battery must be between 55 and 45 volts when it leaves the factory. Two hundred samples of batteries have yielded the following data: average charge of 49 volts with a standard deviation of 2.5 volts. What is the probability of producing an out-of-spec battery? (Points : 1) 0.06
0.80
0.53
0.12
0.08
9. A machine shop owner wishes to monitor the diameter of an engine boring operation where the piston bore should be 4.25". He obtains 8 samples of 5 and records the following data. What should the center line for a chart that monitors process dispersion?
Sample #
Explanation / Answer
1) 0.02
2) 0.53
3) 0.69
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