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 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?
Sub
A
A normal distribution with mean 0 and standard deviation 1
A normal distribution with mean 2.5 and standard deviation 0.04
A normal distribution with mean 2.47 and standard deviation 0.04
A t-distribution with 9 degrees of freedom
E
A t-distribution with 10 degrees of freedom
Transcribed Image Text: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? Sub A A normal distribution with mean 0 and standard deviation 1 A normal distribution with mean 2.5 and standard deviation 0.04 A normal distribution with mean 2.47 and standard deviation 0.04 A t-distribution with 9 degrees of freedom E A t-distribution with 10 degrees of freedom
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