The U.S. Dept. of Treasury claims the mean mass of a quarter is 5.670 g.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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5 step procedure for a hypothesis test

Example: Quarters
The U.S. Dept. of Treasury claims the mean
mass of a quarter is 5.670 g.
A SRS of 50 quarters has a mean mass of
5.652 g. and standard deviation of 0.068 g.
Test the claim that the mean mass of quarters
in circulation is 5.670 g at level a=0.10.
Statistical Significanco
Transcribed Image Text:Example: Quarters The U.S. Dept. of Treasury claims the mean mass of a quarter is 5.670 g. A SRS of 50 quarters has a mean mass of 5.652 g. and standard deviation of 0.068 g. Test the claim that the mean mass of quarters in circulation is 5.670 g at level a=0.10. Statistical Significanco
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5 step procedure for a hypothesis test (z test NOT t test)

Example: Quarters
The U.S. Dept. of Treasury claims the mean
mass of a quarter is 5.670 g.
• A SRS of 50 quarters has a mean mass of
5.652 g. and standard deviation of 0.068 g.
• Test the claim that the mean mass of quarters
in circulation is 5.670 g at level a=0.10.
Statistical Signifi
Transcribed Image Text:Example: Quarters The U.S. Dept. of Treasury claims the mean mass of a quarter is 5.670 g. • A SRS of 50 quarters has a mean mass of 5.652 g. and standard deviation of 0.068 g. • Test the claim that the mean mass of quarters in circulation is 5.670 g at level a=0.10. Statistical Signifi
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