Question

Top sales executives Natalie, and Tai, came up with a kiwi/passion fruit flavor for the Sigma! Cookie Company. The machine fills each package with cookies so that they have an average weight of 32 ounces with a variance of .015 square ounces. Brianna, a quality control inspector for the company, took a random sample of 25 packages of the new cookies and got a sample variance of .029 square ounces. If she finds that the machine fills the packages with a population variance of more than .015 square ounces, then it must be adjusted. Test at the 1% significance level whether the machine will need to be adjusted.

Answer 1