Q3: The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly selected parts. The sam
Posted: Fri May 27, 2022 7:28 am
Q3: The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly selected parts. The sample standard deviation is o² = 0.37. Construct with draw a 95% two-sided confidence interval for (o)? (30 marks)