Advanced Placement (AP), 16.04.2021 23:20, andii1101

The distribution of mass for United States pennies minted since 1982 is approximately normal with mean 2.5 grams. A random sample of 10 pennies minted since 1982 was selected. The sample had a mean mass of 2.47 grams and a standard deviation of 0.04 gram. The test statistic for the population mean has which of the following distributions?

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The distribution of mass for United States pennies minted since 1982 is approximately normal with me...