A random sample of 15 crates have a mean weight of 165.2 pounds and a standard deviation of 15.8 pounds. Construct a 95% confidence interval for the population standard deviation σ. Assume the population is normally distributed, and round to the nearest hundredth when necessary.
A. (11.57, 24.92)
B. (12.15, 23.06)
C. (2.91, 6.27)
D. (133.81, 620.92)