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Question 686:

A label on a container of orange juice claims that the orange juice contains an average of 2 grams of fat with standard deviation of 1.5 grams. A consumer protection group is concerned that the orange juice contains more than 2 grams of fat. The group purchases a random sample of 35 containers to measure fat content in each, and the sample yields an average of 2.5 grams of fat.
Does the sample provide sufficient evidence for the consumer group to conclude that the average fat content of all containers of the orange juice is more than 2 grams? Use a=.05

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