Gyuri performed an analysis of Simvastatin tablets. The following are the data she obtained: 39.5 mg, 41.2 mg, 40.7 mg, 38.9 mg, 42.1 mg, 41.7 mg, 38.7 mg Suppose the mg of Simvastatin stated in label is 40 mg, is there a significant difference between her results and the label claim?

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