Question: An outbreak of food-borne illness was attributed to Salmonella. Epidemiologists determined that the outbreak was caused by ice cream from one company. They sampled 9 production runs and found the level of Salmonella in MPN/g to be:
.593 .142 .329 .691 .231 .793 .519 .392 .418
At Alpha = .01, can we conclude that the average is greater than .3 MPN/g (this level is considered dangerous)?