Indy H2O is a water bottling company. They are looking at two different bottling manufacturers’ - 10951

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mareya

mareya

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  • Posted on: Thu 14 Jun, 2012
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Request Description

Indy H2O is a water bottling company. They are looking at two different bottling manufacturers’ equipment for the purpose of replacing some old equipment. The net weights of a sample of bottles filled by a machine manufactured by WTR, and the net weights of a sample filled by a similar machine manufactured by Target are (in grams):

 

     WTR:  8, 9, 7, 8, 9, and 10

     Target:  8, 10, 7, 11, 9, 12, 8, and 9     

Testing the claim at the 0.05 level that the mean weight of the bottles filled by the Target machine is greater than the mean weight of the bottles filled by the WTR machine, what is the critical value?

A.   1.761

B.   1.782

C.   2.145

D.   2.179

 
Solution Description

Indy H2O is a water bottling company. They are looking at two different bottling manufacturers’ equipment for the purpose of replacing some old equipment. The net weights of a sample of bottles filled by a machine manufactured by WTR, and the net weights of a sample filled by a similar machine man