Question

Boxes of cereal are labeled as containing 13 ounces. Following are the weights of a sample of 12 boxes. Assume the population is normally distributed.

13.02

12.99

13.13

13.06

13.15

13.17

13.01

13.14

13.12

12.97

13.03

13.18

(b Construct a 99% confidence interval for the population standard deviation

σ

. Round the answers to at least two decimal places.

Answer 1

https://drive.google.com/open?id=1JcgG0o9uUmgT_dtPCZd7IRGnER90JWHO