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September 21, 2014

Homework Help: statistics

Posted by Anonymous on Monday, October 11, 2010 at 10:39pm.

You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 5 and a population standard deviation 1 and a sample size of 4. Machine 2 has a sample mean of 8 and a population standard deviation of 2 with a sample size of 4. With an alpha of .05 can we claim that there is a difference between the output of the two machines. Which of the following statements are true?

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