Exam2 - 1 Engineering Statistics(ENGC 6310 DR Samir Safi...

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Unformatted text preview: 1 Engineering Statistics (ENGC 6310) - DR. Samir Safi Fall 2008 Midterm Exam #2 27/12/2008 N AME :________________________________________________ ID:_____________________ Question #1 [10 Points]: A chemical engineer is studying the effects of temperature and catalyst on the percentage of undesired byproduct in the output of a chemical reactor. Can we conclude (at the 5% level of significance) that catalyst or temperature or their interaction affects the percentage of byproduct? Tests of Between-Subjects Effects Dependent Variable: percentage of undesired byproduct .045 1 .045 .115 .751 4.205 1 4.205 10.782 .030 .125 1 .125 .321 .602 1.560 4 .390 5.935 7 Source temperature catalyst temperature * catalyst Error Corrected Total Type III Sum of Squares df Mean Square F Sig. 2 Question #2 [5 Points]: In testing the null hypothesis that the level of heavy equipment usage and the owner’s maintenance policy are independent variables, a mechanical engineer received replies to her questionnaire from a...
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This note was uploaded on 03/16/2011 for the course STAT 6310 taught by Professor Staff during the Fall '08 term at UGA.

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Exam2 - 1 Engineering Statistics(ENGC 6310 DR Samir Safi...

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