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Mathematics, 11.12.2019 00:31, carma43
The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly selected parts. the sample standard deviation is s = 0.46. construct a 95% two-sided confidence interval for σ. assume population is approximately normally distributed.
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The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly selecte...
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