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Efficiency experts study the processes used to manufacture items in order to make them as efficient as possible. One of the steps used to manufacture
- Efficiency experts study the processes used to manufacture items in order to make them as efficient as possible. One of the steps used to manufacture a metal clamp involves the drilling of three holes. In a sample of50clamps, the meantime to finish this step was46.5 seconds. Assume that the population standard deviation is=11seconds. Round the critical value to no less than three decimal places.
Construct a99.9%confidence interval for the meantime needed to work this step. Round the answer to at least one decimal place.
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