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Unformatted text preview: Assignment 8 On-Campus students: Due 3pm Friday Nov. 18; Off-campus students: Due mid- night Sunday, Nov. 20. Note that Poblems 1-3 of this assignment are required for Midterm II, though the assignment is made due after the midterm. The solutions to these problems will be posted Wednesday, Nov 16, before the exam. 1. A textile mill has a large number of looms. The rooms are supposed to generate the same output of cloth per minute. To investigate this assumption, five looms are chosen at random and their output is noted at different times. The following data are obtained. Loom Output 1 14.0 14.1 14.2 14.0 14.1 2 13.9 13.8 13.9 14.0 14.0 3 14.1 14.2 14.1 14.0 13.9 4 13.6 13.8 14.0 13.9 13.7 5 13.8 13.6 13.9 13.8 14.0 a) Explain why the factor loom in this experiment should be considered random. Are the looms homogeneous in output? Use α = 5%. b) Estimate the variability between looms. c) Estimate the experimental error variance....
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This note was uploaded on 12/09/2011 for the course STAT 514 taught by Professor Staff during the Fall '08 term at Purdue.
- Fall '08