Calculate the two-sided 95% confidence interval for the population standard deviation (sigma) given that sample of size n-20 yields sample standard deviation of 15.86_
Your answer:
19,68 _ sigma 36.30
6.91 sigma < 4.55
17,21 sigma 18.72
15.04 sigma 23.05
9.46 sigma 38,94
6.69 sigma < 35.88
8.69 sigma 15.20
22,06 sigma 33.97
12.06 sigma 23.16
4.75 sigma 7.55