MAT122-2007Spring - MAT 122 Final Examination Version A 7...

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MAT 122 Final Examination Version A 7 May 2007 Prof. Vincent Fatica Signature _ SUID ---------------------- READ AND FOLLOW THESE INSTRUCTIONS There are seven (7) questions on this examination. Check that your exam booklet is complete. Answer the questions in the spaces provided in this exam booklet. Show work where possible; partial credit requires some correct and appropriate work. Do not write below this line Question Value Score 1 14 2 14 I 3 14 4 14 I 5 14 I 6 14 7 16
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1. A certain soft-drink bottling machine is supposed to put 12 ounces of product into each bottle. In a recent quality control inspection, a sample of the contents of25 bottles from this machine had a mean of 11.86 ounces standard deviation of .24 ounces, At the .05 level of significance testthe claim thatthe mean contents ofall bottles from that machine is less than 12 ounces.
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2. Recall from question I that in a sample of 25 bottles, the bottling machine had a standard deviation of .24 ounces. Using a = .05 test the claim that the population of bottles filled by that machine has a standard deviation greater than .20 ounces.
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3. In a recent government survey
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This note was uploaded on 06/17/2011 for the course MATH 122 taught by Professor Na during the Spring '11 term at University of North Carolina School of the Arts.

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MAT122-2007Spring - MAT 122 Final Examination Version A 7...

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