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Home Q & A Board Science-Related Homework Help Mathematics
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koklok123 koklok123
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6 years ago
A glass company produces panes of glass that have specifications for a thickness of 0.3 inches. The process standard deviation is known to be 0.04 inches. A random sample of 45 panes of glass has an average thickness of 0.322 inches. What is the 90 confidence interval around the mean? What can we say about this process?
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sweetpeajezzysweetpeajezzy
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