Question: Calculate the two - sided 9 5 % confidence interval for the population standard deviation ( sigma ) given that a sample of size n

Calculate the two-sided 95% confidence interval for the population standard deviation (sigma) given that a sample of size n=20 yields a sample standard deviation of 15.86.
Your answer:
19.6836.30
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
Calculate the two-sided 95% confidence interval for the population standard deviation

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