Question: In a bottling process, a manufacturer will lose money if the bottles contain either more or, less than is claimed on the label. The quality manager of a plant is interested in testing whether the mean ounces of catsup per family size bottle differ from the label by amount of 20 ounces. A sample of 9 bottles yield a mean fill of 19.7 ounces with a standard deviation of 0.3 ounces. Does the sample evidence indicate that the catsup-dispensing machines need adjustment at a 98% confidence?