hw3sl - S08 Homework 3 Each problem is valued at 20 points;...

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S08 FST 109 Homework 3 Each problem is valued at 20 points; one problem will be graded Due May 2 Objectives: (1) distinguish between the distributions used for variables and for attributes, )(2) demonstrate proficiency in using Excel’s built- in statistical functions, and (3) identify key quality innovators, (4) utilize resources to support class concepts. Rdg: Hubbard 3 rd ed., Ch 1, 3, 4 1. Canned green beans are classified by the number of defects in a container. In order to have an A classification, no more than 2% of pieces in a container (a unit) can be blemished to be considered conforming. A production line is operating at 5% nonconforming output ( e.g. , 95% conforming). Every hour a sample of 20 units of product is taken, and the number of nonconforming units counted. The product is reclassified as a B classification if one or more nonconforming unit is found. a. What distribution is best applied to this situation? b. What is the probability of zero nonconforming units? c. What is the probability that the product will be reclassified to a B classification? Solution: a. binomial b. c. () 358 . 0 95 . 0 05 . 0 )! 20 ( ! 0 ! 20 ) 0 ( 20 0 05 . 0 , 20 = = = υ B 642 . 0 358 . 0 1 ) 0 ( 1 ) 0 ( 05 . 0 , 20 05 . 0 , 20 = = = = > B B
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S08 FST 109 Subgroup 1 2 3 4 5 6 265 197 346 280 265 268 205 286 317 242 254 260
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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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hw3sl - S08 Homework 3 Each problem is valued at 20 points;...

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