mt2 - K.L McCarthy FST 109 Name_Key MIDTERM EXAMINATION(50...

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1 May 14, 2007 Name_________Key___________________ MIDTERM EXAMINATION (50 points) Materials allowed: two sheets of notes (crib sheet), calculator, straight edge See attachments for additional information. 1. A potato processing QA department is developing a sampling plan using the nomograph for variables. Potatoes must have a specific gravity of 1.070 or higher for chip manufacture, dehydration, or baking. The processor is willing to accept lots with 3% defective (that is, specific gravity less than 1.070) with a 95% acceptance level. Lots with 10% defective must be rejected at the 85% level. The population standard deviation is known to be 0.003. (15 pts) a. Determine the appropriate sample size ( n ). Answer_______20_________ b. Determine k for these criteria. Answer________1.5_______ c. Will a lot of potatoes with an average sample specific gravity of 1.075 be rejected or accepted? Why or why not? Answer____Z
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This note was uploaded on 02/21/2009 for the course FST 109 taught by Professor Kathrynl.mccarthy during the Spring '08 term at UC Davis.

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mt2 - K.L McCarthy FST 109 Name_Key MIDTERM EXAMINATION(50...

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