Question: Please show work in excel and ill thumbs up for sure show steps and formula ect We are manufacturing metal components on a new mill.

Please show work in excel and ill thumbs up for sure show steps and formula ect
We are manufacturing metal components on a new mill. We ran a complete order first and we have a population Standard deviation sigma of .009. The population mean was .812 We ran 48 new sample parts across the machine and we got an average of .799 We want to know the confidence interval (upper and lower value) at 90% confidence. Show the formula you selected and how you set it up. What are the confidence interval values
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