The National Center for Health Statistics reports in Vital Statistics of the United States that the median

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The National Center for Health Statistics reports in Vital Statistics of the United States that the median birth weight of U.S. babies was 7.4 lb in 2002. A random sample of this year€™s births provided the following weights, in pounds.

5.3 8.6 7.4 9.2 8.8 8.2 13.8 7.8 5.7 9.2 11.6 7.2 5.6 6.0


Can we conclude that this year€™s median birth weight differs from that in 2002? Use a significance level of 0.05.

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