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7. The current weight of the U.S. penny is 2.5 grams. A random sample of 16 pennies minted after 1983 resulted in a mean
Posted: Wed May 11, 2022 6:36 am
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- 7 The Current Weight Of The U S Penny Is 2 5 Grams A Random Sample Of 16 Pennies Minted After 1983 Resulted In A Mean 1 (13.72 KiB) Viewed 22 times
7. The current weight of the U.S. penny is 2.5 grams. A random sample of 16 pennies minted after 1983 resulted in a mean weight of 2.49 grams with a standard deviation of 0.02 grams. You may assume that U.S. penny weights are normally distributed. Test the hypothesis that the current mean weight of the U.S. penny is 2.5 grams at the 3% level of significance. (8 points - be sure to include all steps)