Outbreak of food-borne illness


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)?   

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Basic Statistics: Outbreak of food-borne illness
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