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In: Statistics and Probability

A manufacturer claims that the average weight of a bar of chocolate is 3.53 ounces. We...

A manufacturer claims that the average weight of a bar of chocolate is 3.53 ounces. We take a random sample of 18 chocolate bars, and the sample has an average weight of 3.5 ounces, with a standard deviation of 0.4 ounces. Is there sufficient evidence to claim that the manufacturer is cheating on the weight? I need with more explanation please

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