Use the given degree of confidence and sample data to find a confidence interval for the population standard deviation σ. Assume that the population has a normal distribution. Round the confidence interval limits to the same number of decimal places as the sample standard deviation.

Heights of mature White Pine trees: 99% confidence; n = 29,  = 65 ft , s = 8.4 ft

(1 point)
Responses

8.27 ft < σ < 8.53 ft
8.27 ft < σ < 8.53 ft

4.23 ft < σ < 10.47 ft
4.23 ft < σ < 10.47 ft

6.22 ft < σ < 12.59 ft
6.22 ft < σ < 12.59 ft

5.73 ft < σ < 10.07 ft

5.73 ft < σ < 10.07 ft