December 2, 2015

Homework Help: statistics

Posted by lokesh on Monday, March 5, 2012 at 4:21am.

1. The average number of articles produced by two machines per day is 200 and 250 with standard deviation 20 and 25 respectively on the basis of records of 25 days production. Can you regard both the machines equally efficient at 1% level of significance?

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