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I select 30 random bags of rhinestones and weigh them. The sample standard deviation is 20 milligrams. Assuming the weig

Posted: Tue Nov 23, 2021 9:32 am
by answerhappygod
I select 30 random bags of rhinestones and weigh them. The
sample standard deviation is 20 milligrams. Assuming the weights
are normally distributed, construct 99% confidence intervals for
the population variance and standard deviation.