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Quiz_3

# Quiz_3 - IEOR 165 Spring 2007 Quiz 3 H0117(11.01 The...

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Unformatted text preview: IEOR 165 Spring 2007 Quiz # 3 April 18, 2007 H0117 (11.01 The following table gives the number of sunspots that appeared each year from 1993 to 2006 and the number of deaths due to auto accidents during that year. Auto Accident deaths (w) (in 1000s) 45 44.6 1994 30 1995 80 46.0 1996 9 47.1 1997 59 48.5 (1) (2) (3) (4) (5) 2005 2006 55 54.6 56.3 What is the mean and variance of the number of accidents in year 2008? What is the mean and variance of the number of accidents in a year that has 100 sunspots? Explain the difference between confidence interval and prediction interval. Give a 95% prediction interval for the number of accidents in year 2008. What are the R2 and r values for the regression you used for the above questions? Explain the significance of these values. 411.20 12544.00 x v x*x x*v x‘y v‘v v*y y*! i 1 45 44.6 1 45 44.60 2025.00 2007.00 1989.16 2 30 45.9 4 60 91.80 900.00 1377.00 2106.81 3 9 6400.00 368% 2116.00 4 6 81.00 423.90 2218.41 5 3481 .00 2861.50 2352.257 6 297.60 1156.00 2460.16 7 4158.30 2510.01 2641 .96 471.60 11881.00 5711.60 2745.76 525.00 16129.00 6667.50 2756.25 11 153 . 121 1663 585.20 23409.00 8139.60 2830.24 121 89 53.3 7921.00 4743.70 2840.89 27225.00 9009.00 2981.16 3025.00 3096.50 31 69.69 105.00 1150.00 705.50 1015.00 10274.00 5484.20 123066.00 59318.80 35718.75 ...
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