A manufacturing plant draws a sample of 28 screws from the production line and finds their diameter

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A manufacturing plant draws a sample of 28 screws from the production line and finds their diameter has a mean of 4.06 cm and a standard deviation of 0.39 cm. What is the 99% confidence interval for the population variance?

Posted Date: May 13, 2024 02:55 AM

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A manufacturing plant draws a sample of 28 screws from the production line and finds their diameter

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To find the 99 confidence interval for the population variance we can use the chi squared di... View the full answer

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