The Pet Health and Food Corporation is a producer of pet food. One of its products is Wonderfood, which is a dry cat food that comes in various sizes. The company guarantees that 32% of this cat food is crude protein. In the 6.6-pound (3-kilogram) size, this would mean that 2.11 pounds are crude protein. Of course, these figures are averages. The amount of crude protein varies with each sack of cat food. The file titled Catfood contains the amounts of crude protein found in sacks randomly sampled from the production line. The company would like the standard deviation for protein to be no greater than 0.0167.

Conduct hypothesis test to determine if the standard deviation of the weight of crude protein in the cat food is too large to meet the company’s wishes. Use a significance level of 0.01.