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A number of post-1983 pennies and post-1964 quarters were

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Question: A number of post-1983 pennies and post-1964 quarters were weighed. Here is a summary of the results:

Pennies n= 37; Xbar= 2.499g; s=.01648g

Quarters n=40; Xbar= 5.639g; s= .06194g

Do the pennies and quarters have the same amount of variation?

Please show steps and explain.

Reference no: EM13584037

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