Hw12 - SIEO 3600(IEOR Majors Assignment#12 Introduction to...

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Unformatted text preview: SIEO 3600 (IEOR Majors) Assignment #12 Introduction to Probability and Statistics April 21, 2010 Assignment #12 – due April 27th, 2010 ( Regression: linear (simple and multiple) and polynomial ) 1. The following data represent the relationship between the number of alignment errors and the number of missing rivets for 10 different aircrafts. Number of Number of Missing Rivets = x Alignment Errors = y 13 7 15 7 10 5 22 12 30 15 7 2 25 13 16 9 20 11 15 8 (a) Plot a scatter diagram. (b) Estimate the regression coefficients. (c) Compute the coefficient of determination R 2 . Is a linear model a good fit? 2. The following data indicate the gain in reading speed versus the number of weeks in the program of 10 students in a speed-reading problem. Number of weeks Speed Gain (wds/min) 2 21 3 42 8 102 11 130 4 52 5 57 9 105 7 85 5 62 7 90 (a) Plot a scatter diagram to see if a linear relationship is indicated....
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Hw12 - SIEO 3600(IEOR Majors Assignment#12 Introduction to...

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