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A researcher wants to determine the average salary of technicians in a certain field. From a sample of 100 technicians, the mean salary is $50,000, with a standard deviation of $12,000. What is the 95% confidence interval for this data?
Which type of audit is performed by an organization on its suppliers or subcontractors to ensure their products or services meet required standards and specifications?
In a manufacturing setting, a process capability study has been conducted on a production line for assembling a certain type of widget. The process can produce widgets with a mean length of 2.5 inches and a standard deviation of 0.1 inches. What is the process capability index (Cpk) for this process?
What is the primary goal of increasing the signal-to-noise ratio in a manufacturing process?
A quality auditor records the following times (in minutes) for 8 samples from the process: 5, 7, 9, 10, 10, 12, 14, 15. Calculate the standard deviation.
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