[Step-by-Step] The Farm Products Company uses a machine that fills 50-lb corn seed bags. In the past, the machine has had a standard deviation of 0.75 lb.
Question: The Farm Products Company uses a machine that fills 50-lb corn seed bags. In the past, the machine has had a standard deviation of 0.75 lb. In an attempt to get more consistent weights, mechanics have replaced some worn machine parts. A random sample of 25 bags taken from the repaired machinery produced a sample mean of 50.13 lb and a sample standard deviation of 0.48 lb. At the 0.05 level of significance, test the claim that the standard deviation is lower with the repaired machinery than it was in the past.
Deliverable: Word Document 
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