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A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0 . 2 8 centimeters in
A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be centimeters in diameter. The variance of the bolts should be A random sample of bolts has an average diameter of with a standard deviation of Can the manufacturer conclude that the bolts vary by more than the required variance at level?
Step of : Determine the value of the test statistic. Round your answer to three decimal places.
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