February 27, 2017

Homework Help: statistics

Posted by aman on Monday, April 22, 2013 at 3:39am.

from a normally distributed infinite number of iron bars lengths with a mean and standard deviation as 4 ft. and 0.6 ft. respectively, a sample of 100 bars is taken. if the sample mean is 4.2 ft., can the sample be called a truely random sample?

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