Question: 8 - 5 1 . ( - ) The percentage of titanium in an alloy used in aerospace castings is measured in 5 1 randomly

8-51.(-) The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly selected parts. The sample standard deviation is s=0.37. Construct a 95% twosided confidence interval for .
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8-51.(-) The percentage of titanium in an alloy used in aerospace

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