Fizzco,a Beverage Manufacturing Company,is Interested in Determining Whether the Standard

Fizzco,a beverage manufacturing company,is interested in determining whether the standard deviation of their dispensing process has changed from a required level of 5 millimeters.They have taken a random sample of 12 bottles and have measured the amount of beverage dispensed into each bottle (in millimeters) as follows: 352 345 347 357 341 356 349 343 346 351 348 361
Which of the following is the correct 95% confidence interval of the population standard deviation?

A) [18.005,103.425]
B) [4.24,18.005]
C) [10.17,103.425]
D) [4.24,10.17]