Calculate the two-sided 95% confidence interval for the population standard deviation (sigma) given that a sample of size n-9 yields a sample standard deviatio 17.45. Your answer: O 13.14 sigma 1.41 O 11.79 sigma 33.43 09.87 sigma <0,47 O20.76 sigma-55.11 O 8.64 sigma <21.87 O 2.23 sigma <23.35 O 22.35 sigma 59.39 O21.43 sigma-31.59 O 12.13 sigma - 56.65 O 5.97 sigma-32.92 Clear answer

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