Question: 27. Appendix B Data Set: Weights of Quarters Weights of quarters are used by vending machines as one way to detect counterfeit coins. Refer to

27. Appendix B Data Set: Weights of Quarters Weights of quarters are used by vending machines as one way to detect counterfeit coins. Refer to Data Set 14 in Appendix B and test the claim that the mean weight of pre-1964 silver quarters is equal to the mean weight of post-1964 quarters. Given the relatively small sample sizes from the 9-3 Inferences About Two Means: Independent Samples 483 large populations of millions of quarters, can we really conclude that the mean weights are different?

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