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Problem 1


A consumer group claims that the Doritos snack pack size has an average weight below 1.75 ounces which is the weight labeled on the bags.  A random sample of 49 bags had an average weight of 1.71 ounces and a standard deviation of 0.13 ounces.  At the 5% significance level, test the consumer group’s claim.  Give the practical interpretation of the outcome of the test.


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